79720031030 has 64 divisors (see below), whose sum is σ = 157074603840. Its totient is φ = 29011820544.

The previous prime is 79720031009. The next prime is 79720031057. The reversal of 79720031030 is 3013002797.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652856 + ... + 765284.

It is an arithmetic number, because the mean of its divisors is an integer number (2454290685).

Almost surely, 2^79720031030 is an apocalyptic number.

79720031030 is a deficient number, since it is larger than the sum of its proper divisors (77354572810).

79720031030 is a wasteful number, since it uses less digits than its factorization.

79720031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112593.

The product of its (nonzero) digits is 7938, while the sum is 32.

The spelling of 79720031030 in words is "seventy-nine billion, seven hundred twenty million, thirty-one thousand, thirty".