80689912611858 has 24 divisors (see below), whose sum is σ = 190721611628496. Its totient is φ = 24451488670200.

The previous prime is 80689912611839. The next prime is 80689912611859. The reversal of 80689912611858 is 85811621998608.

It is not an unprimeable number, because it can be changed into a prime (80689912611859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203762405388 + ... + 203762405783.

It is an arithmetic number, because the mean of its divisors is an integer number (7946733817854).

Almost surely, 2^{80689912611858} is an apocalyptic number.

80689912611858 is an abundant number, since it is smaller than the sum of its proper divisors (110031699016638).

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

80689912611858 is a wasteful number, since it uses less digits than its factorization.

80689912611858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407524811190 (or 407524811187 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 72.

The spelling of 80689912611858 in words is "eighty trillion, six hundred eighty-nine billion, nine hundred twelve million, six hundred eleven thousand, eight hundred fifty-eight".