12534172572 has 12 divisors (see below), whose sum is σ = 29246402696. Its totient is φ = 4178057520.

The previous prime is 12534172559. The next prime is 12534172633. The reversal of 12534172572 is 27527143521.

12534172572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12534172572.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 522257179 + ... + 522257202.

Almost surely, 2^12534172572 is an apocalyptic number.

12534172572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12534172572 is an abundant number, since it is smaller than the sum of its proper divisors (16712230124).

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

12534172572 is a wasteful number, since it uses less digits than its factorization.

12534172572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044514388 (or 1044514386 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The spelling of 12534172572 in words is "twelve billion, five hundred thirty-four million, one hundred seventy-two thousand, five hundred seventy-two".