13308817408 has 52 divisors (see below), whose sum is σ = 26649254680. Its totient is φ = 6645694464.

The previous prime is 13308817381. The next prime is 13308817411. The reversal of 13308817408 is 80471880331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4082083 + ... + 4085341.

Almost surely, 2^13308817408 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 13308817408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13324627340).

13308817408 is an abundant number, since it is smaller than the sum of its proper divisors (13340437272).

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

13308817408 is an frugal number, since it uses more digits than its factorization.

13308817408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 4258 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 13308817408 in words is "thirteen billion, three hundred eight million, eight hundred seventeen thousand, four hundred eight".