27591913192 has 16 divisors (see below), whose sum is σ = 51927164100. Its totient is φ = 13744669440.

The previous prime is 27591913169. The next prime is 27591913231. The reversal of 27591913192 is 29131919572.

It can be written as a sum of positive squares in 2 ways, for example, as 19792550596 + 7799362596 = 140686^2 + 88314^2 .

It is a super-2 number, since 2×27591913192² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6408609 + ... + 6412912.

Almost surely, 2^27591913192 is an apocalyptic number.

It is an amenable number.

27591913192 is a deficient number, since it is larger than the sum of its proper divisors (24335250908).

27591913192 is a wasteful number, since it uses less digits than its factorization.

27591913192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12821796 (or 12821792 counting only the distinct ones).

The product of its digits is 306180, while the sum is 49.

The spelling of 27591913192 in words is "twenty-seven billion, five hundred ninety-one million, nine hundred thirteen thousand, one hundred ninety-two".