12744391452 has 48 divisors (see below), whose sum is σ = 32041709952. Its totient is φ = 3919227840.

The previous prime is 12744391433. The next prime is 12744391477. The reversal of 12744391452 is 25419344721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280083 + ... + 322389.

It is an arithmetic number, because the mean of its divisors is an integer number (667535624).

Almost surely, 2^12744391452 is an apocalyptic number.

12744391452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12744391452 is an abundant number, since it is smaller than the sum of its proper divisors (19297318500).

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

12744391452 is a wasteful number, since it uses less digits than its factorization.

12744391452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44258 (or 44256 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The spelling of 12744391452 in words is "twelve billion, seven hundred forty-four million, three hundred ninety-one thousand, four hundred fifty-two".