12137721044757 has 32 divisors (see below), whose sum is σ = 20606288523264. Its totient is φ = 6171154104000.

The previous prime is 12137721044753. The next prime is 12137721044819. The reversal of 12137721044757 is 75744012773121.

It is not a de Polignac number, because 12137721044757 - 2² = 12137721044753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137721044753) 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, 558970494 + ... + 558992207.

It is an arithmetic number, because the mean of its divisors is an integer number (643946516352).

Almost surely, 2^{12137721044757} is an apocalyptic number.

It is an amenable number.

12137721044757 is a deficient number, since it is larger than the sum of its proper divisors (8468567478507).

12137721044757 is a wasteful number, since it uses less digits than its factorization.

12137721044757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117962769.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 12137721044757 in words is "twelve trillion, one hundred thirty-seven billion, seven hundred twenty-one million, forty-four thousand, seven hundred fifty-seven".