291794930868 has 96 divisors (see below), whose sum is σ = 781982924800. Its totient is φ = 82956648960.

The previous prime is 291794930857. The next prime is 291794930893. The reversal of 291794930868 is 868039497192.

It is a junction number, because it is equal to n+sod(n) for n = 291794930799 and 291794930808.

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, 28316205 + ... + 28326507.

Almost surely, 2^291794930868 is an apocalyptic number.

291794930868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

291794930868 is an abundant number, since it is smaller than the sum of its proper divisors (490187993932).

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

291794930868 is a wasteful number, since it uses less digits than its factorization.

291794930868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957 (or 11955 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 291794930868 in words is "two hundred ninety-one billion, seven hundred ninety-four million, nine hundred thirty thousand, eight hundred sixty-eight".