791983668 has 144 divisors (see below), whose sum is σ = 2248827840. Its totient is φ = 216082944.

The previous prime is 791983667. The next prime is 791983741. The reversal of 791983668 is 866389197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791983667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1283296 + ... + 1283912.

It is an arithmetic number, because the mean of its divisors is an integer number (15616860).

Almost surely, 2^791983668 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 791983668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1124413920).

791983668 is an abundant number, since it is smaller than the sum of its proper divisors (1456844172).

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

791983668 is a wasteful number, since it uses less digits than its factorization.

791983668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 725 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 791983668 is about 28142.2043912697. The cubic root of 791983668 is about 925.2066421216.

The spelling of 791983668 in words is "seven hundred ninety-one million, nine hundred eighty-three thousand, six hundred sixty-eight".