13538887535 has 16 divisors (see below), whose sum is σ = 16324848000. Its totient is φ = 10779046656.

The previous prime is 13538887511. The next prime is 13538887603. The reversal of 13538887535 is 53578883531.

It is a cyclic number.

It is not a de Polignac number, because 13538887535 - 2¹² = 13538883439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2909891 + ... + 2914539.

It is an arithmetic number, because the mean of its divisors is an integer number (1020303000).

Almost surely, 2^13538887535 is an apocalyptic number.

13538887535 is a deficient number, since it is larger than the sum of its proper divisors (2785960465).

13538887535 is a wasteful number, since it uses less digits than its factorization.

13538887535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330.

The product of its digits is 12096000, while the sum is 56.

It can be divided in two parts, 1353 and 8887535, that added together give a palindrome (8888888).

The spelling of 13538887535 in words is "thirteen billion, five hundred thirty-eight million, eight hundred eighty-seven thousand, five hundred thirty-five".