27190975988 has 24 divisors (see below), whose sum is σ = 53014518144. Its totient is φ = 12096564800.

The previous prime is 27190975963. The next prime is 27190976063. The reversal of 27190975988 is 88957909172.

It is a super-2 number, since 2×27190975988² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6572153 + ... + 6576288.

It is an arithmetic number, because the mean of its divisors is an integer number (2208938256).

Almost surely, 2^27190975988 is an apocalyptic number.

It is an amenable number.

27190975988 is a deficient number, since it is larger than the sum of its proper divisors (25823542156).

27190975988 is a wasteful number, since it uses less digits than its factorization.

27190975988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148503 (or 13148501 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 65.

The spelling of 27190975988 in words is "twenty-seven billion, one hundred ninety million, nine hundred seventy-five thousand, nine hundred eighty-eight".