76538886639217 has 16 divisors (see below), whose sum is σ = 78064539170688. Its totient is φ = 75016268346240.

The previous prime is 76538886639211. The next prime is 76538886639221. The reversal of 76538886639217 is 71293668883567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76538886639217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76538886639211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580958242 + ... + 581089972.

It is an arithmetic number, because the mean of its divisors is an integer number (4879033698168).

Almost surely, 2^{76538886639217} is an apocalyptic number.

It is an amenable number.

76538886639217 is a deficient number, since it is larger than the sum of its proper divisors (1525652531471).

76538886639217 is a wasteful number, since it uses less digits than its factorization.

76538886639217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143160.

The product of its digits is 4389396480, while the sum is 79.

The spelling of 76538886639217 in words is "seventy-six trillion, five hundred thirty-eight billion, eight hundred eighty-six million, six hundred thirty-nine thousand, two hundred seventeen".