7974831916 has 12 divisors (see below), whose sum is σ = 14437195920. Its totient is φ = 3849918800.

The previous prime is 7974831899. The next prime is 7974831919. The reversal of 7974831916 is 6191384797.

It is not an unprimeable number, because it can be changed into a prime (7974831919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34374160 + ... + 34374391.

It is an arithmetic number, because the mean of its divisors is an integer number (1203099660).

Almost surely, 2^7974831916 is an apocalyptic number.

It is an amenable number.

7974831916 is a deficient number, since it is larger than the sum of its proper divisors (6462364004).

7974831916 is a wasteful number, since it uses less digits than its factorization.

7974831916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68748584 (or 68748582 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 55.

The square root of 7974831916 is about 89301.9144027719. The cubic root of 7974831916 is about 1997.9004563962.

The spelling of 7974831916 in words is "seven billion, nine hundred seventy-four million, eight hundred thirty-one thousand, nine hundred sixteen".