6981163776 has 54 divisors (see below), whose sum is σ = 20128422860. Its totient is φ = 2327053824.

The previous prime is 6981163751. The next prime is 6981163789. The reversal of 6981163776 is 6773611896.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1512706 + ... + 1517313.

Almost surely, 2^6981163776 is an apocalyptic number.

It is an amenable number.

6981163776 is an abundant number, since it is smaller than the sum of its proper divisors (13147259084).

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

6981163776 is a wasteful number, since it uses less digits than its factorization.

6981163776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030041 (or 3030024 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 6981163776 is about 83553.3588552848. The cubic root of 6981163776 is about 1911.2138128491.

The spelling of 6981163776 in words is "six billion, nine hundred eighty-one million, one hundred sixty-three thousand, seven hundred seventy-six".