14778006317689 has 4 divisors (see below), whose sum is σ = 14779445697424. Its totient is φ = 14776566937956.

The previous prime is 14778006317687. The next prime is 14778006317707. The reversal of 14778006317689 is 98671360087741.

14778006317689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 14778006317689 - 2¹ = 14778006317687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14778006317687) 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, 719674467 + ... + 719695000.

It is an arithmetic number, because the mean of its divisors is an integer number (3694861424356).

Almost surely, 2^{14778006317689} is an apocalyptic number.

It is an amenable number.

14778006317689 is a deficient number, since it is larger than the sum of its proper divisors (1439379735).

14778006317689 is a wasteful number, since it uses less digits than its factorization.

14778006317689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439379734.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 14778006317689 in words is "fourteen trillion, seven hundred seventy-eight billion, six million, three hundred seventeen thousand, six hundred eighty-nine".