13520728599 has 16 divisors (see below), whose sum is σ = 20739463680. Its totient is φ = 7674962400.

The previous prime is 13520728597. The next prime is 13520728603. The reversal of 13520728599 is 99582702531.

It is not a de Polignac number, because 13520728599 - 2¹ = 13520728597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520728597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2128764 + ... + 2135105.

It is an arithmetic number, because the mean of its divisors is an integer number (1296216480).

Almost surely, 2^13520728599 is an apocalyptic number.

13520728599 is a deficient number, since it is larger than the sum of its proper divisors (7218735081).

13520728599 is a wasteful number, since it uses less digits than its factorization.

13520728599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264030.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 13520728599 in words is "thirteen billion, five hundred twenty million, seven hundred twenty-eight thousand, five hundred ninety-nine".