27253531172 has 24 divisors (see below), whose sum is σ = 54521927040. Its totient is φ = 11676899520.

The previous prime is 27253531141. The next prime is 27253531187. The reversal of 27253531172 is 27113535272.

It is a super-2 number, since 2×27253531172² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26729 + ... + 234992.

It is an arithmetic number, because the mean of its divisors is an integer number (2271746960).

Almost surely, 2^27253531172 is an apocalyptic number.

It is an amenable number.

27253531172 is an abundant number, since it is smaller than the sum of its proper divisors (27268395868).

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

27253531172 is a wasteful number, since it uses less digits than its factorization.

27253531172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265451 (or 265449 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The spelling of 27253531172 in words is "twenty-seven billion, two hundred fifty-three million, five hundred thirty-one thousand, one hundred seventy-two".