68664674895 has 8 divisors (see below), whose sum is σ = 109863479856. Its totient is φ = 36621159936.

The previous prime is 68664674867. The next prime is 68664674909. The reversal of 68664674895 is 59847646686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68664674895 - 2²³ = 68656286287 is a prime.

It is a super-2 number, since 2×68664674895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2288822482 + ... + 2288822511.

It is an arithmetic number, because the mean of its divisors is an integer number (13732934982).

Almost surely, 2^68664674895 is an apocalyptic number.

68664674895 is a deficient number, since it is larger than the sum of its proper divisors (41198804961).

68664674895 is a wasteful number, since it uses less digits than its factorization.

68664674895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577645001.

The product of its digits is 418037760, while the sum is 69.

The spelling of 68664674895 in words is "sixty-eight billion, six hundred sixty-four million, six hundred seventy-four thousand, eight hundred ninety-five".