13913855999 has 4 divisors (see below), whose sum is σ = 13951158936. Its totient is φ = 13876553064.

The previous prime is 13913855993. The next prime is 13913856007. The reversal of 13913855999 is 99955831931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99955831931 = 8419 ⋅11872649.

It is a cyclic number.

It is not a de Polignac number, because 13913855999 - 2²⁸ = 13645420543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13913855993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18650909 + ... + 18651654.

It is an arithmetic number, because the mean of its divisors is an integer number (3487789734).

Almost surely, 2^13913855999 is an apocalyptic number.

13913855999 is a deficient number, since it is larger than the sum of its proper divisors (37302937).

13913855999 is an equidigital number, since it uses as much as digits as its factorization.

13913855999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37302936.

The product of its digits is 11809800, while the sum is 62.

The spelling of 13913855999 in words is "thirteen billion, nine hundred thirteen million, eight hundred fifty-five thousand, nine hundred ninety-nine".