14014671509 has 2 divisors, whose sum is σ = 14014671510. Its totient is φ = 14014671508.

The previous prime is 14014671449. The next prime is 14014671553. The reversal of 14014671509 is 90517641041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14005539025 + 9132484 = 118345^2 + 3022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14014671509 is a prime.

It is a super-2 number, since 2×14014671509² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14014671569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7007335754 + 7007335755.

It is an arithmetic number, because the mean of its divisors is an integer number (7007335755).

Almost surely, 2^14014671509 is an apocalyptic number.

It is an amenable number.

14014671509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14014671509 is an equidigital number, since it uses as much as digits as its factorization.

14014671509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 14014671509 in words is "fourteen billion, fourteen million, six hundred seventy-one thousand, five hundred nine".