12635132136 has 32 divisors (see below), whose sum is σ = 34459452000. Its totient is φ = 3828827840.

The previous prime is 12635132113. The next prime is 12635132161. The reversal of 12635132136 is 63123153621.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 12635132097 and 12635132106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23929911 + ... + 23930438.

It is an arithmetic number, because the mean of its divisors is an integer number (1076857875).

Almost surely, 2^12635132136 is an apocalyptic number.

It is an amenable number.

12635132136 is an abundant number, since it is smaller than the sum of its proper divisors (21824319864).

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

12635132136 is a wasteful number, since it uses less digits than its factorization.

12635132136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47860369 (or 47860365 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

Adding to 12635132136 its reverse (63123153621), we get a palindrome (75758285757).

The spelling of 12635132136 in words is "twelve billion, six hundred thirty-five million, one hundred thirty-two thousand, one hundred thirty-six".