7911192864 has 24 divisors (see below), whose sum is σ = 20766881520. Its totient is φ = 2637064256.

The previous prime is 7911192829. The next prime is 7911192871. The reversal of 7911192864 is 4682911197.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41204034 + ... + 41204225.

It is an arithmetic number, because the mean of its divisors is an integer number (865286730).

Almost surely, 2^7911192864 is an apocalyptic number.

It is an amenable number.

7911192864 is an abundant number, since it is smaller than the sum of its proper divisors (12855688656).

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

7911192864 is a wasteful number, since it uses less digits than its factorization.

7911192864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82408272 (or 82408264 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 7911192864 is about 88944.8866658449. The cubic root of 7911192864 is about 1992.5718507885.

The spelling of 7911192864 in words is "seven billion, nine hundred eleven million, one hundred ninety-two thousand, eight hundred sixty-four".