68584519376639 has 12 divisors (see below), whose sum is σ = 79784560605168. Its totient is φ = 58784838184800.

The previous prime is 68584519376617. The next prime is 68584519376683. The reversal of 68584519376639 is 93667391548586.

It is not a de Polignac number, because 68584519376639 - 2²⁴ = 68584502599423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68584519372639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20993747 + ... + 24039684.

It is an arithmetic number, because the mean of its divisors is an integer number (6648713383764).

Almost surely, 2^{68584519376639} is an apocalyptic number.

68584519376639 is a deficient number, since it is larger than the sum of its proper divisors (11200041228529).

68584519376639 is a wasteful number, since it uses less digits than its factorization.

68584519376639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45064526 (or 45064519 counting only the distinct ones).

The product of its digits is 7054387200, while the sum is 80.

The spelling of 68584519376639 in words is "sixty-eight trillion, five hundred eighty-four billion, five hundred nineteen million, three hundred seventy-six thousand, six hundred thirty-nine".