391401792913 has 8 divisors (see below), whose sum is σ = 400961899296. Its totient is φ = 381842340000.

The previous prime is 391401792907. The next prime is 391401792941. The reversal of 391401792913 is 319297104193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 391401792913 - 2¹³ = 391401784721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391401792113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183038 + ... + 1477288.

It is an arithmetic number, because the mean of its divisors is an integer number (50120237412).

Almost surely, 2^391401792913 is an apocalyptic number.

It is an amenable number.

391401792913 is a deficient number, since it is larger than the sum of its proper divisors (9560106383).

391401792913 is a wasteful number, since it uses less digits than its factorization.

391401792913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326735.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 391401792913 in words is "three hundred ninety-one billion, four hundred one million, seven hundred ninety-two thousand, nine hundred thirteen".