80857570761 has 64 divisors (see below), whose sum is σ = 137999232000. Its totient is φ = 46276064640.

The previous prime is 80857570757. The next prime is 80857570817. The reversal of 80857570761 is 16707575808.

It is a happy number.

80857570761 is a `hidden beast` number, since 8 + 0 + 8 + 5 + 7 + 570 + 7 + 61 = 666.

It is not a de Polignac number, because 80857570761 - 2² = 80857570757 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80857570698 and 80857570707.

It is not an unprimeable number, because it can be changed into a prime (80857570061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1743370 + ... + 1789148.

It is an arithmetic number, because the mean of its divisors is an integer number (2156238000).

Almost surely, 2^80857570761 is an apocalyptic number.

It is an amenable number.

80857570761 is a deficient number, since it is larger than the sum of its proper divisors (57141661239).

80857570761 is a wasteful number, since it uses less digits than its factorization.

80857570761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46131 (or 46125 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 54.

The spelling of 80857570761 in words is "eighty billion, eight hundred fifty-seven million, five hundred seventy thousand, seven hundred sixty-one".