12637744742 has 48 divisors (see below), whose sum is σ = 22946120640. Its totient is φ = 5200820352.

The previous prime is 12637744741. The next prime is 12637744781. The reversal of 12637744742 is 24744773621.

12637744742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637744741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218234 + ... + 270002.

It is an arithmetic number, because the mean of its divisors is an integer number (478044180).

Almost surely, 2^12637744742 is an apocalyptic number.

12637744742 is a deficient number, since it is larger than the sum of its proper divisors (10308375898).

12637744742 is a wasteful number, since it uses less digits than its factorization.

12637744742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51885 (or 51878 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 47.

The spelling of 12637744742 in words is "twelve billion, six hundred thirty-seven million, seven hundred forty-four thousand, seven hundred forty-two".