12296558138 has 4 divisors (see below), whose sum is σ = 18444837210. Its totient is φ = 6148279068.

The previous prime is 12296558123. The next prime is 12296558179. The reversal of 12296558138 is 83185569221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83185569221 = 8089 ⋅10283789.

It can be written as a sum of positive squares in only one way, i.e., 6432521209 + 5864036929 = 80203^2 + 76577^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074139533 + ... + 3074139536.

Almost surely, 2^12296558138 is an apocalyptic number.

12296558138 is a deficient number, since it is larger than the sum of its proper divisors (6148279072).

12296558138 is an equidigital number, since it uses as much as digits as its factorization.

12296558138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148279071.

The product of its digits is 1036800, while the sum is 50.

The spelling of 12296558138 in words is "twelve billion, two hundred ninety-six million, five hundred fifty-eight thousand, one hundred thirty-eight".