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80757507637 = 563285750207
BaseRepresentation
bin100101100110110000…
…1011100011000110101
321201110010111110010101
41023031201130120311
52310342410221022
6101033253354101
75556150326452
oct1131541343065
9251403443111
1080757507637
1131281564854
1213799638931
13780005a8a1
143ca1602829
152179c50627
hex12cd85c635

80757507637 has 8 divisors (see below), whose sum is σ = 80930877696. Its totient is φ = 80584244832.

The previous prime is 80757507631. The next prime is 80757507667. The reversal of 80757507637 is 73670575708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80757507637 - 23 = 80757507629 is a prime.

It is a super-2 number, since 2×807575076372 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80757507631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583388 + ... + 1633594.

It is an arithmetic number, because the mean of its divisors is an integer number (10116359712).

Almost surely, 280757507637 is an apocalyptic number.

It is an amenable number.

80757507637 is a deficient number, since it is larger than the sum of its proper divisors (173370059).

80757507637 is a wasteful number, since it uses less digits than its factorization.

80757507637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53627.

The product of its (nonzero) digits is 8643600, while the sum is 55.

The spelling of 80757507637 in words is "eighty billion, seven hundred fifty-seven million, five hundred seven thousand, six hundred thirty-seven".

Divisors: 1 563 2857 50207 1608491 28266541 143441399 80757507637