76972644627968 has 40 divisors (see below), whose sum is σ = 157371578896488. Its totient is φ = 37591291551744.

The previous prime is 76972644627889. The next prime is 76972644627971. The reversal of 76972644627968 is 86972644627967.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1748084921 + ... + 1748128952.

Almost surely, 2^{76972644627968} is an apocalyptic number.

It is an amenable number.

76972644627968 is an abundant number, since it is smaller than the sum of its proper divisors (80398934268520).

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

76972644627968 is an equidigital number, since it uses as much as digits as its factorization.

76972644627968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496213934 (or 3496213918 counting only the distinct ones).

The product of its digits is 18435465216, while the sum is 83.

Subtracting 76972644627968 from its reverse (86972644627967), we obtain a palindrome (9999999999999).

The spelling of 76972644627968 in words is "seventy-six trillion, nine hundred seventy-two billion, six hundred forty-four million, six hundred twenty-seven thousand, nine hundred sixty-eight".