7951992164 has 48 divisors (see below), whose sum is σ = 14327591040. Its totient is φ = 3860213760.

The previous prime is 7951992163. The next prime is 7951992173. The reversal of 7951992164 is 4612991597.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (7951992161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12405284 + ... + 12405924.

It is an arithmetic number, because the mean of its divisors is an integer number (298491480).

Almost surely, 2^7951992164 is an apocalyptic number.

It is an amenable number.

7951992164 is a deficient number, since it is larger than the sum of its proper divisors (6375598876).

7951992164 is a wasteful number, since it uses less digits than its factorization.

7951992164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1218 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 53.

The square root of 7951992164 is about 89173.9433018413. The cubic root of 7951992164 is about 1995.9913176008.

The spelling of 7951992164 in words is "seven billion, nine hundred fifty-one million, nine hundred ninety-two thousand, one hundred sixty-four".