13444423199 has 4 divisors (see below), whose sum is σ = 14152024440. Its totient is φ = 12736821960.

The previous prime is 13444423177. The next prime is 13444423207. The reversal of 13444423199 is 99132444431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13444423199 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 (13444423159) 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, 353800592 + ... + 353800629.

It is an arithmetic number, because the mean of its divisors is an integer number (3538006110).

Almost surely, 2^13444423199 is an apocalyptic number.

13444423199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13444423199 is a deficient number, since it is larger than the sum of its proper divisors (707601241).

13444423199 is an equidigital number, since it uses as much as digits as its factorization.

13444423199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707601240.

The product of its digits is 373248, while the sum is 44.

The spelling of 13444423199 in words is "thirteen billion, four hundred forty-four million, four hundred twenty-three thousand, one hundred ninety-nine".