13899208680 has 288 divisors, whose sum is σ = 53413088040. Its totient is φ = 3124638720.

The previous prime is 13899208669. The next prime is 13899208717. The reversal of 13899208680 is 8680299831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7551262404 + 6347946276 = 86898^2 + 79674^2 .

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1069582 + ... + 1082498.

Almost surely, 2^13899208680 is an apocalyptic number.

13899208680 is a gapful number since it is divisible by the number (10) 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 13899208680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26706544020).

13899208680 is an abundant number, since it is smaller than the sum of its proper divisors (39513879360).

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

13899208680 is a wasteful number, since it uses less digits than its factorization.

13899208680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13009 (or 12995 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 13899208680 in words is "thirteen billion, eight hundred ninety-nine million, two hundred eight thousand, six hundred eighty".