27900398832 has 20 divisors (see below), whose sum is σ = 72076030440. Its totient is φ = 9300132928.

The previous prime is 27900398819. The next prime is 27900398849. The reversal of 27900398832 is 23889300972.

It is a happy number.

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, 290629107 + ... + 290629202.

It is an arithmetic number, because the mean of its divisors is an integer number (3603801522).

Almost surely, 2^27900398832 is an apocalyptic number.

It is an amenable number.

27900398832 is an abundant number, since it is smaller than the sum of its proper divisors (44175631608).

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

27900398832 is a wasteful number, since it uses less digits than its factorization.

27900398832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581258320 (or 581258314 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 27900398832 in words is "twenty-seven billion, nine hundred million, three hundred ninety-eight thousand, eight hundred thirty-two".