13610863686 has 64 divisors (see below), whose sum is σ = 32483275776. Its totient is φ = 3717436800.

The previous prime is 13610863657. The next prime is 13610863687. The reversal of 13610863686 is 68636801631.

It is a super-2 number, since 2×13610863686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13610863687) 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, 2064916 + ... + 2071496.

It is an arithmetic number, because the mean of its divisors is an integer number (507551184).

Almost surely, 2^13610863686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13610863686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16241637888).

13610863686 is an abundant number, since it is smaller than the sum of its proper divisors (18872412090).

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

13610863686 is a wasteful number, since it uses less digits than its factorization.

13610863686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 13610863686 in words is "thirteen billion, six hundred ten million, eight hundred sixty-three thousand, six hundred eighty-six".