12537074757 has 4 divisors (see below), whose sum is σ = 16716099680. Its totient is φ = 8358049836.

The previous prime is 12537074749. The next prime is 12537074843. The reversal of 12537074757 is 75747073521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12537074757 - 2³ = 12537074749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537074257) 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, 2089512457 + ... + 2089512462.

It is an arithmetic number, because the mean of its divisors is an integer number (4179024920).

Almost surely, 2^12537074757 is an apocalyptic number.

It is an amenable number.

12537074757 is a deficient number, since it is larger than the sum of its proper divisors (4179024923).

12537074757 is an equidigital number, since it uses as much as digits as its factorization.

12537074757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179024922.

The product of its (nonzero) digits is 1440600, while the sum is 48.

The spelling of 12537074757 in words is "twelve billion, five hundred thirty-seven million, seventy-four thousand, seven hundred fifty-seven".