12744433542 has 32 divisors (see below), whose sum is σ = 25890302592. Its totient is φ = 4181341824.

The previous prime is 12744433531. The next prime is 12744433621. The reversal of 12744433542 is 24533444721.

It is a self number, because there is not a number n which added to its sum of digits gives 12744433542.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 509173 + ... + 533615.

It is an arithmetic number, because the mean of its divisors is an integer number (809071956).

Almost surely, 2^12744433542 is an apocalyptic number.

12744433542 is an abundant number, since it is smaller than the sum of its proper divisors (13145869050).

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

12744433542 is a wasteful number, since it uses less digits than its factorization.

12744433542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25812.

The product of its digits is 322560, while the sum is 39.

The spelling of 12744433542 in words is "twelve billion, seven hundred forty-four million, four hundred thirty-three thousand, five hundred forty-two".