13520809425599 has 8 divisors (see below), whose sum is σ = 15512479520928. Its totient is φ = 11544170803200.

The previous prime is 13520809425503. The next prime is 13520809425637. The reversal of 13520809425599 is 99552490802531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13520809425599 - 2¹⁶ = 13520809360063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520809425899) 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, 3757866302 + ... + 3757869899.

It is an arithmetic number, because the mean of its divisors is an integer number (1939059940116).

Almost surely, 2^{13520809425599} is an apocalyptic number.

13520809425599 is a deficient number, since it is larger than the sum of its proper divisors (1991670095329).

13520809425599 is an equidigital number, since it uses as much as digits as its factorization.

13520809425599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515736465.

The product of its (nonzero) digits is 34992000, while the sum is 62.

The spelling of 13520809425599 in words is "thirteen trillion, five hundred twenty billion, eight hundred nine million, four hundred twenty-five thousand, five hundred ninety-nine".