13686622326 has 160 divisors (see below), whose sum is σ = 35273145600. Its totient is φ = 3934344960.

The previous prime is 13686622319. The next prime is 13686622363. The reversal of 13686622326 is 62322668631.

It is a happy number.

13686622326 is a `hidden beast` number, since 1 + 368 + 66 + 223 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1889680 + ... + 1896908.

It is an arithmetic number, because the mean of its divisors is an integer number (220457160).

Almost surely, 2^13686622326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13686622326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17636572800).

13686622326 is an abundant number, since it is smaller than the sum of its proper divisors (21586523274).

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

13686622326 is a wasteful number, since it uses less digits than its factorization.

13686622326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316 (or 7307 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 13686622326 in words is "thirteen billion, six hundred eighty-six million, six hundred twenty-two thousand, three hundred twenty-six".