13502013405538 has 64 divisors (see below), whose sum is σ = 24765743105280. Its totient is φ = 5391761760000.

The previous prime is 13502013405479. The next prime is 13502013405539. The reversal of 13502013405538 is 83550431020531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13502013405538.

It is not an unprimeable number, because it can be changed into a prime (13502013405539) 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, 350673288 + ... + 350711788.

It is an arithmetic number, because the mean of its divisors is an integer number (386964736020).

Almost surely, 2^{13502013405538} is an apocalyptic number.

13502013405538 is a deficient number, since it is larger than the sum of its proper divisors (11263729699742).

13502013405538 is a wasteful number, since it uses less digits than its factorization.

13502013405538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60203.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 13502013405538 in words is "thirteen trillion, five hundred two billion, thirteen million, four hundred five thousand, five hundred thirty-eight".