6981912256 has 56 divisors (see below), whose sum is σ = 15601858560. Its totient is φ = 3071212800.

The previous prime is 6981912239. The next prime is 6981912299. The reversal of 6981912256 is 6522191896.

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, 138136 + ... + 181783.

Almost surely, 2^6981912256 is an apocalyptic number.

It is an amenable number.

6981912256 is an abundant number, since it is smaller than the sum of its proper divisors (8619946304).

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

6981912256 is a wasteful number, since it uses less digits than its factorization.

6981912256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319973 (or 319963 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 6981912256 is about 83557.8377891625. The cubic root of 6981912256 is about 1911.2821135050.

The spelling of 6981912256 in words is "six billion, nine hundred eighty-one million, nine hundred twelve thousand, two hundred fifty-six".