15514218719 has 2 divisors, whose sum is σ = 15514218720. Its totient is φ = 15514218718.

The previous prime is 15514218697. The next prime is 15514218721. The reversal of 15514218719 is 91781241551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15514218719 - 2⁸ = 15514218463 is a prime.

It is a super-2 number, since 2×15514218719² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 15514218721, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15514218719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15514218619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7757109359 + 7757109360.

It is an arithmetic number, because the mean of its divisors is an integer number (7757109360).

Almost surely, 2^15514218719 is an apocalyptic number.

15514218719 is a deficient number, since it is larger than the sum of its proper divisors (1).

15514218719 is an equidigital number, since it uses as much as digits as its factorization.

15514218719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 44.

The spelling of 15514218719 in words is "fifteen billion, five hundred fourteen million, two hundred eighteen thousand, seven hundred nineteen".