5656919912 has 32 divisors (see below), whose sum is σ = 12320699520. Its totient is φ = 2384648640.

The previous prime is 5656919839. The next prime is 5656919921. The reversal of 5656919912 is 2199196565.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824588 + ... + 831419.

It is an arithmetic number, because the mean of its divisors is an integer number (385021860).

Almost surely, 2^5656919912 is an apocalyptic number.

It is an amenable number.

5656919912 is an abundant number, since it is smaller than the sum of its proper divisors (6663779608).

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

5656919912 is a wasteful number, since it uses less digits than its factorization.

5656919912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656081 (or 1656077 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 53.

The square root of 5656919912 is about 75212.4983762672. The cubic root of 5656919912 is about 1781.8043303853.

The spelling of 5656919912 in words is "five billion, six hundred fifty-six million, nine hundred nineteen thousand, nine hundred twelve".