13308492520 has 32 divisors (see below), whose sum is σ = 29975614920. Its totient is φ = 5317795840.

The previous prime is 13308492511. The next prime is 13308492521. The reversal of 13308492520 is 2529480331.

It can be written as a sum of positive squares in 4 ways, for example, as 11784839364 + 1523653156 = 108558^2 + 39034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13308492520.

It is not an unprimeable number, because it can be changed into a prime (13308492521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136441 + ... + 212680.

Almost surely, 2^13308492520 is an apocalyptic number.

13308492520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13308492520 is an abundant number, since it is smaller than the sum of its proper divisors (16667122400).

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

13308492520 is a wasteful number, since it uses less digits than its factorization.

13308492520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350085 (or 350081 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 13308492520 in words is "thirteen billion, three hundred eight million, four hundred ninety-two thousand, five hundred twenty".