12513916788 has 24 divisors (see below), whose sum is σ = 30206006880. Its totient is φ = 4027467360.

The previous prime is 12513916783. The next prime is 12513916859. The reversal of 12513916788 is 88761931521.

It is a super-2 number, since 2×12513916788² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12513916788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513916783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17979418 + ... + 17980113.

It is an arithmetic number, because the mean of its divisors is an integer number (1258583620).

Almost surely, 2^12513916788 is an apocalyptic number.

It is an amenable number.

12513916788 is an abundant number, since it is smaller than the sum of its proper divisors (17692090092).

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

12513916788 is a wasteful number, since it uses less digits than its factorization.

12513916788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35959567 (or 35959565 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The spelling of 12513916788 in words is "twelve billion, five hundred thirteen million, nine hundred sixteen thousand, seven hundred eighty-eight".