13502978135 has 16 divisors (see below), whose sum is σ = 16650748800. Its totient is φ = 10504590336.

The previous prime is 13502978123. The next prime is 13502978179. The reversal of 13502978135 is 53187920531.

13502978135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13502978135 - 2¹² = 13502974039 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 330146 + ... + 368784.

It is an arithmetic number, because the mean of its divisors is an integer number (1040671800).

Almost surely, 2^13502978135 is an apocalyptic number.

13502978135 is a deficient number, since it is larger than the sum of its proper divisors (3147770665).

13502978135 is a wasteful number, since it uses less digits than its factorization.

13502978135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40570.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 13502978135 in words is "thirteen billion, five hundred two million, nine hundred seventy-eight thousand, one hundred thirty-five".