391000943364 has 24 divisors (see below), whose sum is σ = 966002331168. Its totient is φ = 122666962560.

The previous prime is 391000943351. The next prime is 391000943387. The reversal of 391000943364 is 463349000193.

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, 958335442 + ... + 958335849.

It is an arithmetic number, because the mean of its divisors is an integer number (40250097132).

Almost surely, 2^391000943364 is an apocalyptic number.

391000943364 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

391000943364 is an abundant number, since it is smaller than the sum of its proper divisors (575001387804).

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

391000943364 is a wasteful number, since it uses less digits than its factorization.

391000943364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916671315 (or 1916671313 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 391000943364 in words is "three hundred ninety-one billion, nine hundred forty-three thousand, three hundred sixty-four".