27216937172 has 6 divisors (see below), whose sum is σ = 47629640058. Its totient is φ = 13608468584.

The previous prime is 27216937171. The next prime is 27216937177. The reversal of 27216937172 is 27173961272.

It can be written as a sum of positive squares in only one way, i.e., 24471596356 + 2745340816 = 156434^2 + 52396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27216937171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402117143 + ... + 3402117150.

It is an arithmetic number, because the mean of its divisors is an integer number (7938273343).

Almost surely, 2^27216937172 is an apocalyptic number.

It is an amenable number.

27216937172 is a deficient number, since it is larger than the sum of its proper divisors (20412702886).

27216937172 is a wasteful number, since it uses less digits than its factorization.

27216937172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804234297 (or 6804234295 counting only the distinct ones).

The product of its digits is 444528, while the sum is 47.

The spelling of 27216937172 in words is "twenty-seven billion, two hundred sixteen million, nine hundred thirty-seven thousand, one hundred seventy-two".