12135732704 has 24 divisors (see below), whose sum is σ = 23914641240. Its totient is φ = 6062173056.

The previous prime is 12135732691. The next prime is 12135732709. The reversal of 12135732704 is 40723753121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135732709) 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, 143174 + ... + 211589.

It is an arithmetic number, because the mean of its divisors is an integer number (996443385).

Almost surely, 2^12135732704 is an apocalyptic number.

It is an amenable number.

12135732704 is a deficient number, since it is larger than the sum of its proper divisors (11778908536).

12135732704 is a wasteful number, since it uses less digits than its factorization.

12135732704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355842 (or 355834 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 12135732704 in words is "twelve billion, one hundred thirty-five million, seven hundred thirty-two thousand, seven hundred four".