80940631275 has 108 divisors (see below), whose sum is σ = 174864595152. Its totient is φ = 35053741440.

The previous prime is 80940631253. The next prime is 80940631297. The reversal of 80940631275 is 57213604908.

80940631275 is a `hidden beast` number, since 8 + 0 + 9 + 4 + 0 + 631 + 2 + 7 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (80940631253) and next prime (80940631297).

It is not a de Polignac number, because 80940631275 - 2⁵ = 80940631243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80940631275.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 497397 + ... + 639753.

It is a 1-persistent number, because it is pandigital, but 2⋅80940631275 = 161881262550 is not.

Almost surely, 2^80940631275 is an apocalyptic number.

80940631275 is an abundant number, since it is smaller than the sum of its proper divisors (93923963877).

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

80940631275 is a wasteful number, since it uses less digits than its factorization.

80940631275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142418 (or 142391 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 80940631275 in words is "eighty billion, nine hundred forty million, six hundred thirty-one thousand, two hundred seventy-five".