13863519723 has 4 divisors (see below), whose sum is σ = 18484692968. Its totient is φ = 9242346480.

The previous prime is 13863519713. The next prime is 13863519763. The reversal of 13863519723 is 32791536831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13863519723 - 2⁹ = 13863519211 is a prime.

It is a super-2 number, since 2×13863519723² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13863519713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310586618 + ... + 2310586623.

It is an arithmetic number, because the mean of its divisors is an integer number (4621173242).

Almost surely, 2^13863519723 is an apocalyptic number.

13863519723 is a deficient number, since it is larger than the sum of its proper divisors (4621173245).

13863519723 is an equidigital number, since it uses as much as digits as its factorization.

13863519723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621173244.

The product of its digits is 816480, while the sum is 48.

The spelling of 13863519723 in words is "thirteen billion, eight hundred sixty-three million, five hundred nineteen thousand, seven hundred twenty-three".