12731913504 has 48 divisors (see below), whose sum is σ = 37134750240. Its totient is φ = 4243970880.

The previous prime is 12731913487. The next prime is 12731913541. The reversal of 12731913504 is 40531913721.

12731913504 is a `hidden beast` number, since 127 + 3 + 19 + 13 + 504 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 7367142 + ... + 7368869.

It is an arithmetic number, because the mean of its divisors is an integer number (773640630).

Almost surely, 2^12731913504 is an apocalyptic number.

It is an amenable number.

12731913504 is an abundant number, since it is smaller than the sum of its proper divisors (24402836736).

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

12731913504 is a wasteful number, since it uses less digits than its factorization.

12731913504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736030 (or 14736016 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 12731913504 in words is "twelve billion, seven hundred thirty-one million, nine hundred thirteen thousand, five hundred four".