13917380823 has 16 divisors (see below), whose sum is σ = 21007369440. Its totient is φ = 9103191552.

The previous prime is 13917380773. The next prime is 13917380857. The reversal of 13917380823 is 32808371931.

It is a happy number.

It is not a de Polignac number, because 13917380823 - 2⁶ = 13917380759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13917280823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4861386 + ... + 4864247.

It is an arithmetic number, because the mean of its divisors is an integer number (1312960590).

Almost surely, 2^13917380823 is an apocalyptic number.

13917380823 is a deficient number, since it is larger than the sum of its proper divisors (7089988617).

13917380823 is an equidigital number, since it uses as much as digits as its factorization.

13917380823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725695 (or 9725689 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 13917380823 in words is "thirteen billion, nine hundred seventeen million, three hundred eighty thousand, eight hundred twenty-three".