398878097344 has 28 divisors (see below), whose sum is σ = 791544994504. Its totient is φ = 199433689344.

The previous prime is 398878097339. The next prime is 398878097399. The reversal of 398878097344 is 443790878893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3516199 + ... + 3627865.

Almost surely, 2^398878097344 is an apocalyptic number.

It is an amenable number.

398878097344 is a deficient number, since it is larger than the sum of its proper divisors (392666897160).

398878097344 is a wasteful number, since it uses less digits than its factorization.

398878097344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167492 (or 167482 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 70.

The spelling of 398878097344 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, ninety-seven thousand, three hundred forty-four".