13102631685 has 144 divisors (see below), whose sum is σ = 27826763328. Its totient is φ = 5863104000.

The previous prime is 13102631617. The next prime is 13102631687. The reversal of 13102631685 is 58613620131.

13102631685 is a `hidden beast` number, since 1 + 3 + 10 + 2 + 631 + 6 + 8 + 5 = 666.

It is not a de Polignac number, because 13102631685 - 2⁷ = 13102631557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102631687) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2255785 + ... + 2261585.

It is an arithmetic number, because the mean of its divisors is an integer number (193241412).

Almost surely, 2^13102631685 is an apocalyptic number.

13102631685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13102631685 is an abundant number, since it is smaller than the sum of its proper divisors (14724131643).

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

13102631685 is a wasteful number, since it uses less digits than its factorization.

13102631685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858 (or 5833 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 13102631685 in words is "thirteen billion, one hundred two million, six hundred thirty-one thousand, six hundred eighty-five".