13638220614 has 20 divisors (see below), whose sum is σ = 30559716924. Its totient is φ = 4546073484.

The previous prime is 13638220597. The next prime is 13638220619. The reversal of 13638220614 is 41602283631.

13638220614 is a `hidden beast` number, since 1 + 3 + 6 + 38 + 2 + 2 + 0 + 614 = 666.

It is a super-2 number, since 2×13638220614² (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 (13638220619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42093112 + ... + 42093435.

Almost surely, 2^13638220614 is an apocalyptic number.

13638220614 is an abundant number, since it is smaller than the sum of its proper divisors (16921496310).

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

13638220614 is an equidigital number, since it uses as much as digits as its factorization.

13638220614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84186561 (or 84186552 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 13638220614 in words is "thirteen billion, six hundred thirty-eight million, two hundred twenty thousand, six hundred fourteen".