12378530136 has 48 divisors (see below), whose sum is σ = 35998790040. Its totient is φ = 3536722560.

The previous prime is 12378530117. The next prime is 12378530179. The reversal of 12378530136 is 63103587321.

It is a junction number, because it is equal to n+sod(n) for n = 12378530094 and 12378530103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5261805 + ... + 5264156.

Almost surely, 2^12378530136 is an apocalyptic number.

It is an amenable number.

12378530136 is an abundant number, since it is smaller than the sum of its proper divisors (23620259904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12378530136 is a wasteful number, since it uses less digits than its factorization.

12378530136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525984 (or 10525973 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 12378530136 in words is "twelve billion, three hundred seventy-eight million, five hundred thirty thousand, one hundred thirty-six".