398878838412 has 36 divisors (see below), whose sum is σ = 950941178040. Its totient is φ = 130130676224.

The previous prime is 398878838383. The next prime is 398878838429. The reversal of 398878838412 is 214838878893.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7497237 + ... + 7550252.

Almost surely, 2^398878838412 is an apocalyptic number.

It is an amenable number.

398878838412 is an abundant number, since it is smaller than the sum of its proper divisors (552062339628).

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

398878838412 is a wasteful number, since it uses less digits than its factorization.

398878838412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15047590 (or 15047541 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 69.

The spelling of 398878838412 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, eight hundred thirty-eight thousand, four hundred twelve".