6391365108868 has 24 divisors (see below), whose sum is σ = 12047678415360. Its totient is φ = 2958135322560.

The previous prime is 6391365108857. The next prime is 6391365108893. The reversal of 6391365108868 is 8688015631936.

It is a super-2 number, since 2×6391365108868² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120502953 + ... + 1120508656.

It is an arithmetic number, because the mean of its divisors is an integer number (501986600640).

Almost surely, 2^{6391365108868} is an apocalyptic number.

It is an amenable number.

6391365108868 is a deficient number, since it is larger than the sum of its proper divisors (5656313306492).

6391365108868 is a wasteful number, since it uses less digits than its factorization.

6391365108868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241011667 (or 2241011665 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 64.

The spelling of 6391365108868 in words is "six trillion, three hundred ninety-one billion, three hundred sixty-five million, one hundred eight thousand, eight hundred sixty-eight".