27131290188 has 24 divisors (see below), whose sum is σ = 63325118640. Its totient is φ = 9041081280.

The previous prime is 27131290139. The next prime is 27131290247. The reversal of 27131290188 is 88109213172.

It is a super-2 number, since 2×27131290188² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292903 + ... + 374238.

It is an arithmetic number, because the mean of its divisors is an integer number (2638546610).

Almost surely, 2^27131290188 is an apocalyptic number.

It is an amenable number.

27131290188 is an abundant number, since it is smaller than the sum of its proper divisors (36193828452).

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

27131290188 is a wasteful number, since it uses less digits than its factorization.

27131290188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670537 (or 670535 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 27131290188 in words is "twenty-seven billion, one hundred thirty-one million, two hundred ninety thousand, one hundred eighty-eight".