7931716064 has 12 divisors (see below), whose sum is σ = 15615566064. Its totient is φ = 3965858016.

The previous prime is 7931716057. The next prime is 7931716073. The reversal of 7931716064 is 4606171397.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123933032 + ... + 123933095.

It is an arithmetic number, because the mean of its divisors is an integer number (1301297172).

Almost surely, 2^7931716064 is an apocalyptic number.

It is an amenable number.

7931716064 is a deficient number, since it is larger than the sum of its proper divisors (7683850000).

7931716064 is a wasteful number, since it uses less digits than its factorization.

7931716064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247866137 (or 247866129 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 7931716064 is about 89060.1822589646. The cubic root of 7931716064 is about 1994.2934048724.

The spelling of 7931716064 in words is "seven billion, nine hundred thirty-one million, seven hundred sixteen thousand, sixty-four".