13999602204 has 144 divisors (see below), whose sum is σ = 43239426048. Its totient is φ = 3727931904.

The previous prime is 13999602203. The next prime is 13999602209. The reversal of 13999602204 is 40220699931.

It is a happy number.

13999602204 is a `hidden beast` number, since 1 + 39 + 9 + 9 + 602 + 2 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13999602204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13999602203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425389 + ... + 457115.

It is an arithmetic number, because the mean of its divisors is an integer number (300273792).

Almost surely, 2^13999602204 is an apocalyptic number.

13999602204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13999602204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21619713024).

13999602204 is an abundant number, since it is smaller than the sum of its proper divisors (29239823844).

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

13999602204 is a wasteful number, since it uses less digits than its factorization.

13999602204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31864 (or 31859 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 13999602204 in words is "thirteen billion, nine hundred ninety-nine million, six hundred two thousand, two hundred four".