399394026893411 has 32 divisors (see below), whose sum is σ = 443920332764160. Its totient is φ = 356260700135200.

The previous prime is 399394026893371. The next prime is 399394026893441. The reversal of 399394026893411 is 114398620493993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399394026893411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399394026893441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2235020576 + ... + 2235199266.

It is an arithmetic number, because the mean of its divisors is an integer number (13872510398880).

Almost surely, 2^{399394026893411} is an apocalyptic number.

399394026893411 is a deficient number, since it is larger than the sum of its proper divisors (44526305870749).

399394026893411 is a wasteful number, since it uses less digits than its factorization.

399394026893411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185215.

The product of its (nonzero) digits is 272097792, while the sum is 71.

The spelling of 399394026893411 in words is "three hundred ninety-nine trillion, three hundred ninety-four billion, twenty-six million, eight hundred ninety-three thousand, four hundred eleven".