76172987045 has 16 divisors (see below), whose sum is σ = 93852646272. Its totient is φ = 59318024640.

The previous prime is 76172987027. The next prime is 76172987071. The reversal of 76172987045 is 54078927167.

It is a de Polignac number, because none of the positive numbers 2^k-76172987045 is a prime.

It is a super-3 number, since 3×76172987045³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541601 + ... + 667590.

It is an arithmetic number, because the mean of its divisors is an integer number (5865790392).

Almost surely, 2^76172987045 is an apocalyptic number.

It is an amenable number.

76172987045 is a deficient number, since it is larger than the sum of its proper divisors (17679659227).

76172987045 is a wasteful number, since it uses less digits than its factorization.

76172987045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209532.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 76172987045 in words is "seventy-six billion, one hundred seventy-two million, nine hundred eighty-seven thousand, forty-five".