13996820799 has 24 divisors (see below), whose sum is σ = 21806602272. Its totient is φ = 8600068800.

The previous prime is 13996820777. The next prime is 13996820807. The reversal of 13996820799 is 99702869931.

It is a happy number.

It is not a de Polignac number, because 13996820799 - 2⁷ = 13996820671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13996820699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16752 + ... + 168149.

It is an arithmetic number, because the mean of its divisors is an integer number (908608428).

Almost surely, 2^13996820799 is an apocalyptic number.

13996820799 is a deficient number, since it is larger than the sum of its proper divisors (7809781473).

13996820799 is a wasteful number, since it uses less digits than its factorization.

13996820799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185567 (or 185564 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 13996820799 in words is "thirteen billion, nine hundred ninety-six million, eight hundred twenty thousand, seven hundred ninety-nine".