7990915976 has 16 divisors (see below), whose sum is σ = 15007418700. Its totient is φ = 3988937664.

The previous prime is 7990915957. The next prime is 7990915981. The reversal of 7990915976 is 6795190997.

It can be written as a sum of positive squares in 2 ways, for example, as 7987711876 + 3204100 = 89374^2 + 1790^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809831 + ... + 819638.

Almost surely, 2^7990915976 is an apocalyptic number.

It is an amenable number.

7990915976 is a deficient number, since it is larger than the sum of its proper divisors (7016502724).

7990915976 is a wasteful number, since it uses less digits than its factorization.

7990915976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630088 (or 1630084 counting only the distinct ones).

The product of its (nonzero) digits is 9644670, while the sum is 62.

The square root of 7990915976 is about 89391.9234383062. The cubic root of 7990915976 is about 1999.2427112931.

The spelling of 7990915976 in words is "seven billion, nine hundred ninety million, nine hundred fifteen thousand, nine hundred seventy-six".