14042715509 has 2 divisors, whose sum is σ = 14042715510. Its totient is φ = 14042715508.

The previous prime is 14042715499. The next prime is 14042715521. The reversal of 14042715509 is 90551724041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9805356484 + 4237359025 = 99022^2 + 65095^2 .

It is a cyclic number.

It is not a de Polignac number, because 14042715509 - 2¹² = 14042711413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14042715109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7021357754 + 7021357755.

It is an arithmetic number, because the mean of its divisors is an integer number (7021357755).

Almost surely, 2^14042715509 is an apocalyptic number.

It is an amenable number.

14042715509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14042715509 is an equidigital number, since it uses as much as digits as its factorization.

14042715509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 14042715509 in words is "fourteen billion, forty-two million, seven hundred fifteen thousand, five hundred nine".