12458422872 has 72 divisors (see below), whose sum is σ = 39250399500. Its totient is φ = 3559548384.

The previous prime is 12458422861. The next prime is 12458422891. The reversal of 12458422872 is 27822485421.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1762122 + ... + 1769177.

Almost surely, 2^12458422872 is an apocalyptic number.

12458422872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12458422872 is an abundant number, since it is smaller than the sum of its proper divisors (26791976628).

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

12458422872 is a wasteful number, since it uses less digits than its factorization.

12458422872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531325 (or 3531311 counting only the distinct ones).

The product of its digits is 573440, while the sum is 45.

It can be divided in two parts, 124584 and 22872, that added together give a square (147456 = 384²).

The spelling of 12458422872 in words is "twelve billion, four hundred fifty-eight million, four hundred twenty-two thousand, eight hundred seventy-two".