12542737657024 has 56 divisors (see below), whose sum is σ = 26469678582000. Its totient is φ = 5876462616576.

The previous prime is 12542737657003. The next prime is 12542737657049. The reversal of 12542737657024 is 42075673724521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25145649 + ... + 25639600.

Almost surely, 2^{12542737657024} is an apocalyptic number.

It is an amenable number.

12542737657024 is an abundant number, since it is smaller than the sum of its proper divisors (13926940924976).

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

12542737657024 is a wasteful number, since it uses less digits than its factorization.

12542737657024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50785505 (or 50785495 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 55.

The spelling of 12542737657024 in words is "twelve trillion, five hundred forty-two billion, seven hundred thirty-seven million, six hundred fifty-seven thousand, twenty-four".