13919264689 has 4 divisors (see below), whose sum is σ = 15184652400. Its totient is φ = 12653876980.

The previous prime is 13919264657. The next prime is 13919264713. The reversal of 13919264689 is 98646291931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13919264689 - 2⁵ = 13919264657 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13919264189) 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, 632693839 + ... + 632693860.

It is an arithmetic number, because the mean of its divisors is an integer number (3796163100).

Almost surely, 2^13919264689 is an apocalyptic number.

It is an amenable number.

13919264689 is a deficient number, since it is larger than the sum of its proper divisors (1265387711).

13919264689 is a wasteful number, since it uses less digits than its factorization.

13919264689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265387710.

The product of its digits is 5038848, while the sum is 58.

The spelling of 13919264689 in words is "thirteen billion, nine hundred nineteen million, two hundred sixty-four thousand, six hundred eighty-nine".