12570431868 has 72 divisors (see below), whose sum is σ = 33236470176. Its totient is φ = 3998332800.

The previous prime is 12570431851. The next prime is 12570431879. The reversal of 12570431868 is 86813407521.

12570431868 is a `hidden beast` number, since 1 + 2 + 570 + 4 + 3 + 18 + 68 = 666.

12570431868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 330558 + ... + 366618.

Almost surely, 2^12570431868 is an apocalyptic number.

12570431868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12570431868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16618235088).

12570431868 is an abundant number, since it is smaller than the sum of its proper divisors (20666038308).

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

12570431868 is a wasteful number, since it uses less digits than its factorization.

12570431868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36515 (or 36510 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 12570431868 in words is "twelve billion, five hundred seventy million, four hundred thirty-one thousand, eight hundred sixty-eight".