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4942520647680 = 220357211253
BaseRepresentation
bin100011111101100010100…
…1100000000000000000000
3122111111111202120111020110
41013323011030000000000
51121434240241211210
614302321310311320
71020041161220400
oct107730514000000
918444452514213
104942520647680
111636125066400
12679a881b8540
1329b1019156a5
1413130d99a800
1588876427420
hex47ec5300000

4942520647680 has 1512 divisors, whose sum is σ = 20604458243376. Its totient is φ = 1007639592960.

The previous prime is 4942520647657. The next prime is 4942520647703. The reversal of 4942520647680 is 867460252494.

It is an interprime number because it is at equal distance from previous prime (4942520647657) and next prime (4942520647703).

It is a self number, because there is not a number n which added to its sum of digits gives 4942520647680.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 93255106534 + ... + 93255106586.

It is an arithmetic number, because the mean of its divisors is an integer number (13627287198).

Almost surely, 24942520647680 is an apocalyptic number.

4942520647680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4942520647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10302229121688).

4942520647680 is an abundant number, since it is smaller than the sum of its proper divisors (15661937595696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4942520647680 is an frugal number, since it uses more digits than its factorization.

4942520647680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 4942520647680 in words is "four trillion, nine hundred forty-two billion, five hundred twenty million, six hundred forty-seven thousand, six hundred eighty".