12542637704772 has 24 divisors (see below), whose sum is σ = 33447033879616. Its totient is φ = 3583610772768.

The previous prime is 12542637704771. The next prime is 12542637704797. The reversal of 12542637704772 is 27740773624521.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12542637704771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74658557683 + ... + 74658557850.

Almost surely, 2^{12542637704772} is an apocalyptic number.

12542637704772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12542637704772 is an abundant number, since it is smaller than the sum of its proper divisors (20904396174844).

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

12542637704772 is a wasteful number, since it uses less digits than its factorization.

12542637704772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149317115547 (or 149317115545 counting only the distinct ones).

The product of its (nonzero) digits is 27659520, while the sum is 57.

The spelling of 12542637704772 in words is "twelve trillion, five hundred forty-two billion, six hundred thirty-seven million, seven hundred four thousand, seven hundred seventy-two".