12539022027 has 32 divisors (see below), whose sum is σ = 20238566400. Its totient is φ = 6741163008.

The previous prime is 12539021981. The next prime is 12539022029. The reversal of 12539022027 is 72022093521.

It is not a de Polignac number, because 12539022027 - 2²³ = 12530633419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12539022029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1340874 + ... + 1350192.

It is an arithmetic number, because the mean of its divisors is an integer number (632455200).

Almost surely, 2^12539022027 is an apocalyptic number.

12539022027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12539022027 is a deficient number, since it is larger than the sum of its proper divisors (7699544373).

12539022027 is a wasteful number, since it uses less digits than its factorization.

12539022027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 12539022027 in words is "twelve billion, five hundred thirty-nine million, twenty-two thousand, twenty-seven".