12515497472 has 40 divisors (see below), whose sum is σ = 26093816496. Its totient is φ = 5985667072.

The previous prime is 12515497471. The next prime is 12515497481. The reversal of 12515497472 is 27479451521.

12515497472 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 not an unprimeable number, because it can be changed into a prime (12515497471) by changing a digit.

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, 519623 + ... + 543174.

Almost surely, 2^12515497472 is an apocalyptic number.

It is an amenable number.

12515497472 is an abundant number, since it is smaller than the sum of its proper divisors (13578319024).

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

12515497472 is an equidigital number, since it uses as much as digits as its factorization.

12515497472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062838 (or 1062822 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The spelling of 12515497472 in words is "twelve billion, five hundred fifteen million, four hundred ninety-seven thousand, four hundred seventy-two".