12505034544 has 40 divisors (see below), whose sum is σ = 32914201392. Its totient is φ = 4089696000.

The previous prime is 12505034501. The next prime is 12505034557. The reversal of 12505034544 is 44543050521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455207 + ... + 2460294.

Almost surely, 2^12505034544 is an apocalyptic number.

It is an amenable number.

12505034544 is an abundant number, since it is smaller than the sum of its proper divisors (20409166848).

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

12505034544 is a wasteful number, since it uses less digits than its factorization.

12505034544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915565 (or 4915559 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 12505034544 in words is "twelve billion, five hundred five million, thirty-four thousand, five hundred forty-four".