398047358879 has 16 divisors (see below), whose sum is σ = 405938705760. Its totient is φ = 390202368000.

The previous prime is 398047358869. The next prime is 398047358897. The reversal of 398047358879 is 978853740893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398047358879 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 (398047358869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22239524 + ... + 22257414.

It is an arithmetic number, because the mean of its divisors is an integer number (25371169110).

Almost surely, 2^398047358879 is an apocalyptic number.

398047358879 is a deficient number, since it is larger than the sum of its proper divisors (7891346881).

398047358879 is a wasteful number, since it uses less digits than its factorization.

398047358879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19162.

The product of its (nonzero) digits is 365783040, while the sum is 71.

The spelling of 398047358879 in words is "three hundred ninety-eight billion, forty-seven million, three hundred fifty-eight thousand, eight hundred seventy-nine".