12327451138 has 16 divisors (see below), whose sum is σ = 19304307000. Its totient is φ = 5896582272.

The previous prime is 12327451127. The next prime is 12327451159. The reversal of 12327451138 is 83115472321.

It can be written as a sum of positive squares in 4 ways, for example, as 9574035409 + 2753415729 = 97847^2 + 52473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12327451097 and 12327451106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968643 + ... + 981286.

Almost surely, 2^12327451138 is an apocalyptic number.

12327451138 is a deficient number, since it is larger than the sum of its proper divisors (6976855862).

12327451138 is a wasteful number, since it uses less digits than its factorization.

12327451138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950069.

The product of its digits is 40320, while the sum is 37.

The spelling of 12327451138 in words is "twelve billion, three hundred twenty-seven million, four hundred fifty-one thousand, one hundred thirty-eight".