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2681990910720 = 2832511118117921
BaseRepresentation
bin100111000001110011000…
…111011001001100000000
3100111101200120001201112100
4213001303013121030000
5322420204133120340
65412031205030400
7364524143412102
oct47016307311400
910441616051470
102681990910720
11944475a4a120
123739553b5400
13165bab93a864
1493b4807d572
1549b70ed3830
hex270731d9300

2681990910720 has 432 divisors, whose sum is σ = 10132128717984. Its totient is φ = 649592832000.

The previous prime is 2681990910667. The next prime is 2681990910733. The reversal of 2681990910720 is 270190991862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149647360 + ... + 149665280.

It is an arithmetic number, because the mean of its divisors is an integer number (23454001662).

Almost surely, 22681990910720 is an apocalyptic number.

2681990910720 is a gapful number since it is divisible by the number (20) 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 2681990910720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5066064358992).

2681990910720 is an abundant number, since it is smaller than the sum of its proper divisors (7450137807264).

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

2681990910720 is a wasteful number, since it uses less digits than its factorization.

2681990910720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19140 (or 19123 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 2681990910720 in words is "two trillion, six hundred eighty-one billion, nine hundred ninety million, nine hundred ten thousand, seven hundred twenty".