12438130636 has 12 divisors (see below), whose sum is σ = 22272931912. Its totient is φ = 6074435808.

The previous prime is 12438130613. The next prime is 12438130637. The reversal of 12438130636 is 63603183421.

It is a super-4 number, since 4×12438130636⁴ (a number of 41 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12438130595 and 12438130604.

It is not an unprimeable number, because it can be changed into a prime (12438130637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36157185 + ... + 36157528.

Almost surely, 2^12438130636 is an apocalyptic number.

It is an amenable number.

12438130636 is a deficient number, since it is larger than the sum of its proper divisors (9834801276).

12438130636 is a wasteful number, since it uses less digits than its factorization.

12438130636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72314760 (or 72314758 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 12438130636 in words is "twelve billion, four hundred thirty-eight million, one hundred thirty thousand, six hundred thirty-six".