791305680 has 160 divisors (see below), whose sum is σ = 2748716928. Its totient is φ = 186624000.

The previous prime is 791305667. The next prime is 791305693. The reversal of 791305680 is 86503197.

It is an interprime number because it is at equal distance from previous prime (791305667) and next prime (791305693).

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, 93630 + ... + 101730.

Almost surely, 2^791305680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791305680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374358464).

791305680 is an abundant number, since it is smaller than the sum of its proper divisors (1957411248).

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

791305680 is a wasteful number, since it uses less digits than its factorization.

791305680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165 (or 8159 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 791305680 is about 28130.1560607118. The cubic root of 791305680 is about 924.9425549911.

The spelling of 791305680 in words is "seven hundred ninety-one million, three hundred five thousand, six hundred eighty".