12542740652 has 48 divisors (see below), whose sum is σ = 24107388480. Its totient is φ = 5674276608.

The previous prime is 12542740619. The next prime is 12542740657. The reversal of 12542740652 is 25604724521.

12542740652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12542740657) 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 15 ways as a sum of consecutive naturals, for example, 4708673 + ... + 4711335.

It is an arithmetic number, because the mean of its divisors is an integer number (502237260).

Almost surely, 2^12542740652 is an apocalyptic number.

It is an amenable number.

12542740652 is a deficient number, since it is larger than the sum of its proper divisors (11564647828).

12542740652 is a wasteful number, since it uses less digits than its factorization.

12542740652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442 (or 4440 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 12542740652 in words is "twelve billion, five hundred forty-two million, seven hundred forty thousand, six hundred fifty-two".