13512737920 has 256 divisors, whose sum is σ = 36824284800. Its totient is φ = 4735610880.

The previous prime is 13512737899. The next prime is 13512737923. The reversal of 13512737920 is 2973721531.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512737923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24703087 + ... + 24703633.

Almost surely, 2^13512737920 is an apocalyptic number.

13512737920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13512737920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18412142400).

13512737920 is an abundant number, since it is smaller than the sum of its proper divisors (23311546880).

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

13512737920 is an equidigital number, since it uses as much as digits as its factorization.

13512737920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 13512737920 in words is "thirteen billion, five hundred twelve million, seven hundred thirty-seven thousand, nine hundred twenty".