399683258879 has 8 divisors (see below), whose sum is σ = 402152426160. Its totient is φ = 397214300736.

The previous prime is 399683258869. The next prime is 399683258893. The reversal of 399683258879 is 978852386993.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399683258879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399683258869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5780987 + ... + 5849715.

It is an arithmetic number, because the mean of its divisors is an integer number (50269053270).

Almost surely, 2^399683258879 is an apocalyptic number.

399683258879 is a deficient number, since it is larger than the sum of its proper divisors (2469167281).

399683258879 is a wasteful number, since it uses less digits than its factorization.

399683258879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104569.

The product of its digits is 1410877440, while the sum is 77.

The spelling of 399683258879 in words is "three hundred ninety-nine billion, six hundred eighty-three million, two hundred fifty-eight thousand, eight hundred seventy-nine".