27123013256 has 64 divisors (see below), whose sum is σ = 54435466800. Its totient is φ = 12624740352.

The previous prime is 27123013249. The next prime is 27123013277. The reversal of 27123013256 is 65231032172.

It can be written as a sum of positive squares in 8 ways, for example, as 26384804356 + 738208900 = 162434^2 + 27170^2 .

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 11220560 + ... + 11222976.

Almost surely, 2^27123013256 is an apocalyptic number.

It is an amenable number.

27123013256 is an abundant number, since it is smaller than the sum of its proper divisors (27312453544).

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

27123013256 is a wasteful number, since it uses less digits than its factorization.

27123013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 27123013256 in words is "twenty-seven billion, one hundred twenty-three million, thirteen thousand, two hundred fifty-six".