14191518989 has 6 divisors (see below), whose sum is σ = 14333430570. Its totient is φ = 14050998800.

The previous prime is 14191518983. The next prime is 14191518997. The reversal of 14191518989 is 98981519141.

14191518989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11482836964 + 2708682025 = 107158^2 + 52045^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14191518989 is a prime.

It is a super-2 number, since 2×14191518989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14191518983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 685394 + ... + 705795.

It is an arithmetic number, because the mean of its divisors is an integer number (2388905095).

Almost surely, 2^14191518989 is an apocalyptic number.

It is an amenable number.

14191518989 is a deficient number, since it is larger than the sum of its proper divisors (141911581).

14191518989 is an equidigital number, since it uses as much as digits as its factorization.

14191518989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391391 (or 1391290 counting only the distinct ones).

The product of its digits is 933120, while the sum is 56.

The spelling of 14191518989 in words is "fourteen billion, one hundred ninety-one million, five hundred eighteen thousand, nine hundred eighty-nine".