12513575620 has 48 divisors (see below), whose sum is σ = 32342784768. Its totient is φ = 3960339840.

The previous prime is 12513575609. The next prime is 12513575629. The reversal of 12513575620 is 2657531521.

It is a self number, because there is not a number n which added to its sum of digits gives 12513575620.

It is not an unprimeable number, because it can be changed into a prime (12513575629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3435976 + ... + 3439615.

It is an arithmetic number, because the mean of its divisors is an integer number (673808016).

Almost surely, 2^12513575620 is an apocalyptic number.

12513575620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513575620 is an abundant number, since it is smaller than the sum of its proper divisors (19829209148).

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

12513575620 is a wasteful number, since it uses less digits than its factorization.

12513575620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875620 (or 6875618 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 12513575620 in words is "twelve billion, five hundred thirteen million, five hundred seventy-five thousand, six hundred twenty".