12387329136 has 160 divisors (see below), whose sum is σ = 43761643520. Its totient is φ = 3266977536.

The previous prime is 12387329081. The next prime is 12387329137. The reversal of 12387329136 is 63192378321.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12387329091 and 12387329100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387329137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118240 + ... + 196863.

It is an arithmetic number, because the mean of its divisors is an integer number (273510272).

Almost surely, 2^12387329136 is an apocalyptic number.

12387329136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12387329136 is an abundant number, since it is smaller than the sum of its proper divisors (31374314384).

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

12387329136 is a wasteful number, since it uses less digits than its factorization.

12387329136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315140 (or 315128 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The spelling of 12387329136 in words is "twelve billion, three hundred eighty-seven million, three hundred twenty-nine thousand, one hundred thirty-six".