27800374164 has 12 divisors (see below), whose sum is σ = 64867539744. Its totient is φ = 9266791384.

The previous prime is 27800374157. The next prime is 27800374171. The reversal of 27800374164 is 46147300872.

It is an interprime number because it is at equal distance from previous prime (27800374157) and next prime (27800374171).

It is a tau number, because it is divible by the number of its divisors (12).

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, 1158348912 + ... + 1158348935.

It is an arithmetic number, because the mean of its divisors is an integer number (5405628312).

Almost surely, 2^27800374164 is an apocalyptic number.

It is an amenable number.

27800374164 is an abundant number, since it is smaller than the sum of its proper divisors (37067165580).

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

27800374164 is a wasteful number, since it uses less digits than its factorization.

27800374164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316697854 (or 2316697852 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 27800374164 in words is "twenty-seven billion, eight hundred million, three hundred seventy-four thousand, one hundred sixty-four".