208931198704 has 20 divisors (see below), whose sum is σ = 428616209664. Its totient is φ = 98320563968.

The previous prime is 208931198683. The next prime is 208931198713. The reversal of 208931198704 is 407891139802.

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, 384064432 + ... + 384064975.

Almost surely, 2^208931198704 is an apocalyptic number.

It is an amenable number.

208931198704 is an abundant number, since it is smaller than the sum of its proper divisors (219685010960).

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

208931198704 is a wasteful number, since it uses less digits than its factorization.

208931198704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768129432 (or 768129426 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 208931198704 in words is "two hundred eight billion, nine hundred thirty-one million, one hundred ninety-eight thousand, seven hundred four".