13512197500 has 30 divisors (see below), whose sum is σ = 29548478960. Its totient is φ = 5404878000.

The previous prime is 13512197477. The next prime is 13512197521. The reversal of 13512197500 is 579121531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2699940 + ... + 2704939.

Almost surely, 2^13512197500 is an apocalyptic number.

13512197500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13512197500 is an abundant number, since it is smaller than the sum of its proper divisors (16036281460).

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

13512197500 is an equidigital number, since it uses as much as digits as its factorization.

13512197500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404903 (or 5404886 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 34.

The spelling of 13512197500 in words is "thirteen billion, five hundred twelve million, one hundred ninety-seven thousand, five hundred".