14919688613 has 2 divisors, whose sum is σ = 14919688614. Its totient is φ = 14919688612.

The previous prime is 14919688577. The next prime is 14919688621. The reversal of 14919688613 is 31688691941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9491240929 + 5428447684 = 97423^2 + 73678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14919688613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14919688213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7459844306 + 7459844307.

It is an arithmetic number, because the mean of its divisors is an integer number (7459844307).

Almost surely, 2^14919688613 is an apocalyptic number.

It is an amenable number.

14919688613 is a deficient number, since it is larger than the sum of its proper divisors (1).

14919688613 is an equidigital number, since it uses as much as digits as its factorization.

14919688613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 56.

The spelling of 14919688613 in words is "fourteen billion, nine hundred nineteen million, six hundred eighty-eight thousand, six hundred thirteen".