12537456384 has 72 divisors (see below), whose sum is σ = 33384692880. Its totient is φ = 4177051648.

The previous prime is 12537456343. The next prime is 12537456391. The reversal of 12537456384 is 48365473521.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600344 + ... + 2605160.

It is an arithmetic number, because the mean of its divisors is an integer number (463676290).

Almost surely, 2^12537456384 is an apocalyptic number.

It is an amenable number.

12537456384 is an abundant number, since it is smaller than the sum of its proper divisors (20847236496).

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

12537456384 is an equidigital number, since it uses as much as digits as its factorization.

12537456384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225 (or 8211 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The spelling of 12537456384 in words is "twelve billion, five hundred thirty-seven million, four hundred fifty-six thousand, three hundred eighty-four".