13685814135 has 64 divisors (see below), whose sum is σ = 28066176000. Its totient is φ = 6197855616.

The previous prime is 13685814127. The next prime is 13685814139. The reversal of 13685814135 is 53141858631.

13685814135 is a `hidden beast` number, since 1 + 3 + 68 + 581 + 4 + 1 + 3 + 5 = 666.

It is not a de Polignac number, because 13685814135 - 2³ = 13685814127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13685814139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33441 + ... + 168789.

It is an arithmetic number, because the mean of its divisors is an integer number (438534000).

Almost surely, 2^13685814135 is an apocalyptic number.

13685814135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13685814135 is an abundant number, since it is smaller than the sum of its proper divisors (14380361865).

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

13685814135 is a wasteful number, since it uses less digits than its factorization.

13685814135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135477 (or 135471 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 13685814135 in words is "thirteen billion, six hundred eighty-five million, eight hundred fourteen thousand, one hundred thirty-five".