76973470056 has 72 divisors (see below), whose sum is σ = 242505713970. Its totient is φ = 21992419008.

The previous prime is 76973470039. The next prime is 76973470087. The reversal of 76973470056 is 65007437967.

It can be written as a sum of positive squares in only one way, i.e., 76490964900 + 482505156 = 276570^2 + 21966^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 76973469984 and 76973470011.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10905411 + ... + 10912466.

Almost surely, 2^76973470056 is an apocalyptic number.

It is an amenable number.

76973470056 is an abundant number, since it is smaller than the sum of its proper divisors (165532243914).

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

76973470056 is a wasteful number, since it uses less digits than its factorization.

76973470056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21817903 (or 21817889 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 76973470056 in words is "seventy-six billion, nine hundred seventy-three million, four hundred seventy thousand, fifty-six".