7931716318 has 4 divisors (see below), whose sum is σ = 11897574480. Its totient is φ = 3965858158.

The previous prime is 7931716291. The next prime is 7931716361. The reversal of 7931716318 is 8136171397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8136171397 = 1511 ⋅5384627.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1982929078 + ... + 1982929081.

It is an arithmetic number, because the mean of its divisors is an integer number (2974393620).

Almost surely, 2^7931716318 is an apocalyptic number.

7931716318 is a deficient number, since it is larger than the sum of its proper divisors (3965858162).

7931716318 is a wasteful number, since it uses less digits than its factorization.

7931716318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965858161.

The product of its digits is 190512, while the sum is 46.

The square root of 7931716318 is about 89060.1836849667. The cubic root of 7931716318 is about 1994.2934261604.

The spelling of 7931716318 in words is "seven billion, nine hundred thirty-one million, seven hundred sixteen thousand, three hundred eighteen".