12338958536 has 8 divisors (see below), whose sum is σ = 23135547270. Its totient is φ = 6169479264.

The previous prime is 12338958521. The next prime is 12338958553. The reversal of 12338958536 is 63585983321.

It can be written as a sum of positive squares in only one way, i.e., 10569073636 + 1769884900 = 102806^2 + 42070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771184901 + ... + 771184916.

Almost surely, 2^12338958536 is an apocalyptic number.

It is an amenable number.

12338958536 is a deficient number, since it is larger than the sum of its proper divisors (10796588734).

12338958536 is a wasteful number, since it uses less digits than its factorization.

12338958536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542369823 (or 1542369819 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The spelling of 12338958536 in words is "twelve billion, three hundred thirty-eight million, nine hundred fifty-eight thousand, five hundred thirty-six".