14278431889 has 2 divisors, whose sum is σ = 14278431890. Its totient is φ = 14278431888.

The previous prime is 14278431877. The next prime is 14278431907. The reversal of 14278431889 is 98813487241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13685022289 + 593409600 = 116983^2 + 24360^2 .

It is a cyclic number.

It is not a de Polignac number, because 14278431889 - 2²⁵ = 14244877457 is a prime.

It is not a weakly prime, because it can be changed into another prime (14278431689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7139215944 + 7139215945.

It is an arithmetic number, because the mean of its divisors is an integer number (7139215945).

Almost surely, 2^14278431889 is an apocalyptic number.

It is an amenable number.

14278431889 is a deficient number, since it is larger than the sum of its proper divisors (1).

14278431889 is an equidigital number, since it uses as much as digits as its factorization.

14278431889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 55.

The spelling of 14278431889 in words is "fourteen billion, two hundred seventy-eight million, four hundred thirty-one thousand, eight hundred eighty-nine".