12137721044764 has 12 divisors (see below), whose sum is σ = 24275442089584. Its totient is φ = 5201880447744.

The previous prime is 12137721044753. The next prime is 12137721044819. The reversal of 12137721044764 is 46744012773121.

12137721044764 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216745018629 + ... + 216745018684.

Almost surely, 2^{12137721044764} is an apocalyptic number.

12137721044764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12137721044764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12137721044764 is a wasteful number, since it uses less digits than its factorization.

12137721044764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433490037324 (or 433490037322 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 12137721044764 in words is "twelve trillion, one hundred thirty-seven billion, seven hundred twenty-one million, forty-four thousand, seven hundred sixty-four".