27239521936 has 105 divisors (see below), whose sum is σ = 59987355411. Its totient is φ = 11982194400.

The previous prime is 27239521921. The next prime is 27239521949. The reversal of 27239521936 is 63912593272.

The square root of 27239521936 is 165044.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 27239521936.

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 20 ways as a sum of consecutive naturals, for example, 878694241 + ... + 878694271.

Almost surely, 2^27239521936 is an apocalyptic number.

27239521936 is the 165044-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27239521936

27239521936 is an abundant number, since it is smaller than the sum of its proper divisors (32747833475).

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

27239521936 is an frugal number, since it uses more digits than its factorization.

27239521936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 44 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 49.

Multiplying 27239521936 by its sum of digits (49), we get a square (1334736574864 = 1155308²).

The spelling of 27239521936 in words is "twenty-seven billion, two hundred thirty-nine million, five hundred twenty-one thousand, nine hundred thirty-six".