13814435680687 has 2 divisors, whose sum is σ = 13814435680688. Its totient is φ = 13814435680686.

The previous prime is 13814435680651. The next prime is 13814435680751. The reversal of 13814435680687 is 78608653441831.

It is an a-pointer prime, because the next prime (13814435680751) can be obtained adding 13814435680687 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13814435680687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13814435680637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6907217840343 + 6907217840344.

It is an arithmetic number, because the mean of its divisors is an integer number (6907217840344).

Almost surely, 2^{13814435680687} is an apocalyptic number.

13814435680687 is a deficient number, since it is larger than the sum of its proper divisors (1).

13814435680687 is an equidigital number, since it uses as much as digits as its factorization.

13814435680687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 13814435680687 in words is "thirteen trillion, eight hundred fourteen billion, four hundred thirty-five million, six hundred eighty thousand, six hundred eighty-seven".