13521412608 has 320 divisors, whose sum is σ = 41379351552. Its totient is φ = 3886202880.

The previous prime is 13521412589. The next prime is 13521412609. The reversal of 13521412608 is 80621412531.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13521412609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26881285 + ... + 26881787.

Almost surely, 2^13521412608 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 13521412608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20689675776).

13521412608 is an abundant number, since it is smaller than the sum of its proper divisors (27857938944).

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

13521412608 is a wasteful number, since it uses less digits than its factorization.

13521412608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 13521412608 in words is "thirteen billion, five hundred twenty-one million, four hundred twelve thousand, six hundred eight".