398919093378 has 32 divisors (see below), whose sum is σ = 861513930816. Its totient is φ = 122415254208.

The previous prime is 398919093367. The next prime is 398919093413. The reversal of 398919093378 is 873390919893.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826600 + ... + 6884787.

It is an arithmetic number, because the mean of its divisors is an integer number (26922310338).

Almost surely, 2^398919093378 is an apocalyptic number.

398919093378 is an abundant number, since it is smaller than the sum of its proper divisors (462594837438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398919093378 is a wasteful number, since it uses less digits than its factorization.

398919093378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13711778.

The product of its (nonzero) digits is 79361856, while the sum is 69.

The spelling of 398919093378 in words is "three hundred ninety-eight billion, nine hundred nineteen million, ninety-three thousand, three hundred seventy-eight".