13768587515215 has 32 divisors (see below), whose sum is σ = 18437542704000. Its totient is φ = 9800576647680.

The previous prime is 13768587515213. The next prime is 13768587515261. The reversal of 13768587515215 is 51251578586731.

It is not a de Polignac number, because 13768587515215 - 2¹ = 13768587515213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13768587515213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4967956 + ... + 7226185.

It is an arithmetic number, because the mean of its divisors is an integer number (576173209500).

Almost surely, 2^{13768587515215} is an apocalyptic number.

13768587515215 is a deficient number, since it is larger than the sum of its proper divisors (4668955188785).

13768587515215 is a wasteful number, since it uses less digits than its factorization.

13768587515215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12194787.

The product of its digits is 70560000, while the sum is 64.

The spelling of 13768587515215 in words is "thirteen trillion, seven hundred sixty-eight billion, five hundred eighty-seven million, five hundred fifteen thousand, two hundred fifteen".