13197013648 has 80 divisors (see below), whose sum is σ = 31609226880. Its totient is φ = 5197667328.

The previous prime is 13197013573. The next prime is 13197013663. The reversal of 13197013648 is 84631079131.

It is a super-2 number, since 2×13197013648² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310548 + ... + 350476.

It is an arithmetic number, because the mean of its divisors is an integer number (395115336).

Almost surely, 2^13197013648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13197013648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15804613440).

13197013648 is an abundant number, since it is smaller than the sum of its proper divisors (18412213232).

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

13197013648 is a wasteful number, since it uses less digits than its factorization.

13197013648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40184 (or 40178 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 13197013648 in words is "thirteen billion, one hundred ninety-seven million, thirteen thousand, six hundred forty-eight".