791111643018 has 32 divisors (see below), whose sum is σ = 1584490190976. Its totient is φ = 263326272768.

The previous prime is 791111642987. The next prime is 791111643037. The reversal of 791111643018 is 810346111197.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16296430 + ... + 16344902.

It is an arithmetic number, because the mean of its divisors is an integer number (49515318468).

Almost surely, 2^791111643018 is an apocalyptic number.

791111643018 is an abundant number, since it is smaller than the sum of its proper divisors (793378547958).

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

791111643018 is a wasteful number, since it uses less digits than its factorization.

791111643018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52318.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 791111643018 in words is "seven hundred ninety-one billion, one hundred eleven million, six hundred forty-three thousand, eighteen".