13444999499 has 2 divisors, whose sum is σ = 13444999500. Its totient is φ = 13444999498.

The previous prime is 13444999489. The next prime is 13444999523. The reversal of 13444999499 is 99499944431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13444999499 is a prime.

It is a super-2 number, since 2×13444999499² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13444999409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722499749 + 6722499750.

It is an arithmetic number, because the mean of its divisors is an integer number (6722499750).

Almost surely, 2^13444999499 is an apocalyptic number.

13444999499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444999499 is an equidigital number, since it uses as much as digits as its factorization.

13444999499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45349632, while the sum is 65.

The spelling of 13444999499 in words is "thirteen billion, four hundred forty-four million, nine hundred ninety-nine thousand, four hundred ninety-nine".