13868144622 has 56 divisors (see below), whose sum is σ = 31323683664. Its totient is φ = 4602762144.

The previous prime is 13868144599. The next prime is 13868144623. The reversal of 13868144622 is 22644186831.

13868144622 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 8 + 14 + 4 + 622 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868144623) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 319303 + ... + 360125.

It is an arithmetic number, because the mean of its divisors is an integer number (559351494).

Almost surely, 2^13868144622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13868144622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15661841832).

13868144622 is an abundant number, since it is smaller than the sum of its proper divisors (17455539042).

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

13868144622 is an equidigital number, since it uses as much as digits as its factorization.

13868144622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41076 (or 41061 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 13868144622 in words is "thirteen billion, eight hundred sixty-eight million, one hundred forty-four thousand, six hundred twenty-two".