76612172631 has 4 divisors (see below), whose sum is σ = 102149563512. Its totient is φ = 51074781752.

The previous prime is 76612172563. The next prime is 76612172639. The reversal of 76612172631 is 13627121667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13627121667 = 3 ⋅4542373889.

It is a cyclic number.

It is not a de Polignac number, because 76612172631 - 2²⁵ = 76578618199 is a prime.

It is a super-2 number, since 2×76612172631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76612172639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12768695436 + ... + 12768695441.

It is an arithmetic number, because the mean of its divisors is an integer number (25537390878).

Almost surely, 2^76612172631 is an apocalyptic number.

76612172631 is a deficient number, since it is larger than the sum of its proper divisors (25537390881).

76612172631 is a wasteful number, since it uses less digits than its factorization.

76612172631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25537390880.

The product of its digits is 127008, while the sum is 42.

The spelling of 76612172631 in words is "seventy-six billion, six hundred twelve million, one hundred seventy-two thousand, six hundred thirty-one".