14418819157 has 2 divisors, whose sum is σ = 14418819158. Its totient is φ = 14418819156.

The previous prime is 14418819139. The next prime is 14418819193. The reversal of 14418819157 is 75191881441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9558777361 + 4860041796 = 97769^2 + 69714^2 .

It is a cyclic number.

It is not a de Polignac number, because 14418819157 - 2²³ = 14410430549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14418819157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14418819137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7209409578 + 7209409579.

It is an arithmetic number, because the mean of its divisors is an integer number (7209409579).

Almost surely, 2^14418819157 is an apocalyptic number.

It is an amenable number.

14418819157 is a deficient number, since it is larger than the sum of its proper divisors (1).

14418819157 is an equidigital number, since it uses as much as digits as its factorization.

14418819157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 49.

The spelling of 14418819157 in words is "fourteen billion, four hundred eighteen million, eight hundred nineteen thousand, one hundred fifty-seven".