13298721838512 has 320 divisors, whose sum is σ = 38531798807040. Its totient is φ = 3917375078400.

The previous prime is 13298721838511. The next prime is 13298721838531. The reversal of 13298721838512 is 21583812789231.

It is not an unprimeable number, because it can be changed into a prime (13298721838511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11203640383 + ... + 11203641569.

It is an arithmetic number, because the mean of its divisors is an integer number (120411871272).

Almost surely, 2^{13298721838512} is an apocalyptic number.

13298721838512 is a gapful number since it is divisible by the number (12) 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 13298721838512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19265899403520).

13298721838512 is an abundant number, since it is smaller than the sum of its proper divisors (25233076968528).

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

13298721838512 is a wasteful number, since it uses less digits than its factorization.

13298721838512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692 (or 2686 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 60.

The spelling of 13298721838512 in words is "thirteen trillion, two hundred ninety-eight billion, seven hundred twenty-one million, eight hundred thirty-eight thousand, five hundred twelve".