27118789172 has 12 divisors (see below), whose sum is σ = 47573917860. Its totient is φ = 13526241216.

The previous prime is 27118789157. The next prime is 27118789177. The reversal of 27118789172 is 27198781172.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12330769936 + 14788019236 = 111044^2 + 121606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27118789177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8286503 + ... + 8289774.

It is an arithmetic number, because the mean of its divisors is an integer number (3964493155).

Almost surely, 2^27118789172 is an apocalyptic number.

It is an amenable number.

27118789172 is a deficient number, since it is larger than the sum of its proper divisors (20455128688).

27118789172 is a wasteful number, since it uses less digits than its factorization.

27118789172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16576690 (or 16576688 counting only the distinct ones).

The product of its digits is 790272, while the sum is 53.

The spelling of 27118789172 in words is "twenty-seven billion, one hundred eighteen million, seven hundred eighty-nine thousand, one hundred seventy-two".