13520542540 has 12 divisors (see below), whose sum is σ = 28393139376. Its totient is φ = 5408217008.

The previous prime is 13520542537. The next prime is 13520542559. The reversal of 13520542540 is 4524502531.

13520542540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338013544 + ... + 338013583.

It is an arithmetic number, because the mean of its divisors is an integer number (2366094948).

Almost surely, 2^13520542540 is an apocalyptic number.

13520542540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13520542540 is an abundant number, since it is smaller than the sum of its proper divisors (14872596836).

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

13520542540 is a wasteful number, since it uses less digits than its factorization.

13520542540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676027136 (or 676027134 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 13520542540 in words is "thirteen billion, five hundred twenty million, five hundred forty-two thousand, five hundred forty".