6972489656 has 16 divisors (see below), whose sum is σ = 14261910840. Its totient is φ = 3169313440.

The previous prime is 6972489581. The next prime is 6972489697. The reversal of 6972489656 is 6569842796.

It is a super-2 number, since 2×6972489656² = 97231224006053996672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39616331 + ... + 39616506.

Almost surely, 2^6972489656 is an apocalyptic number.

It is an amenable number.

6972489656 is an abundant number, since it is smaller than the sum of its proper divisors (7289421184).

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

6972489656 is a wasteful number, since it uses less digits than its factorization.

6972489656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79232854 (or 79232850 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The square root of 6972489656 is about 83501.4350535367. The cubic root of 6972489656 is about 1910.4219215375.

The spelling of 6972489656 in words is "six billion, nine hundred seventy-two million, four hundred eighty-nine thousand, six hundred fifty-six".