12513756320 has 48 divisors (see below), whose sum is σ = 31837889160. Its totient is φ = 4620463104.

The previous prime is 12513756313. The next prime is 12513756323. The reversal of 12513756320 is 2365731521.

It can be written as a sum of positive squares in 4 ways, for example, as 6761443984 + 5752312336 = 82228^2 + 75844^2 .

It is not an unprimeable number, because it can be changed into a prime (12513756323) 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, 3006035 + ... + 3010194.

Almost surely, 2^12513756320 is an apocalyptic number.

12513756320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513756320 is an abundant number, since it is smaller than the sum of its proper divisors (19324132840).

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

12513756320 is a wasteful number, since it uses less digits than its factorization.

12513756320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016257 (or 6016249 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 12513756320 in words is "twelve billion, five hundred thirteen million, seven hundred fifty-six thousand, three hundred twenty".