80856597738 has 32 divisors (see below), whose sum is σ = 186144698880. Its totient is φ = 22935682800.

The previous prime is 80856597719. The next prime is 80856597739. The reversal of 80856597738 is 83779565808.

It is not an unprimeable number, because it can be changed into a prime (80856597739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6919188 + ... + 6930863.

It is an arithmetic number, because the mean of its divisors is an integer number (5817021840).

Almost surely, 2^80856597738 is an apocalyptic number.

80856597738 is an abundant number, since it is smaller than the sum of its proper divisors (105288101142).

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

80856597738 is a wasteful number, since it uses less digits than its factorization.

80856597738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850202.

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 80856597738 in words is "eighty billion, eight hundred fifty-six million, five hundred ninety-seven thousand, seven hundred thirty-eight".