12013524544 has 56 divisors (see below), whose sum is σ = 27255703680. Its totient is φ = 5146622976.

The previous prime is 12013524493. The next prime is 12013524547. The reversal of 12013524544 is 44542531021.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (12013524547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886037 + ... + 1892395.

Almost surely, 2^12013524544 is an apocalyptic number.

12013524544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12013524544 is an abundant number, since it is smaller than the sum of its proper divisors (15242179136).

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

12013524544 is an equidigital number, since it uses as much as digits as its factorization.

12013524544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10595 (or 10585 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 12013524544 in words is "twelve billion, thirteen million, five hundred twenty-four thousand, five hundred forty-four".