80171992357704 has 48 divisors (see below), whose sum is σ = 233834977712700. Its totient is φ = 24668305340544.

The previous prime is 80171992357619. The next prime is 80171992357741. The reversal of 80171992357704 is 40775329917108.

80171992357704 is a `hidden beast` number, since 80 + 17 + 199 + 2 + 357 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64075061996100 + 16096930361604 = 8004690^2 + 4012098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42826918059 + ... + 42826919930.

Almost surely, 2^{80171992357704} is an apocalyptic number.

It is an amenable number.

80171992357704 is an abundant number, since it is smaller than the sum of its proper divisors (153662985354996).

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

80171992357704 is a wasteful number, since it uses less digits than its factorization.

80171992357704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85653838014 (or 85653838007 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

The spelling of 80171992357704 in words is "eighty trillion, one hundred seventy-one billion, nine hundred ninety-two million, three hundred fifty-seven thousand, seven hundred four".