68397574165 has 8 divisors (see below), whose sum is σ = 83233104768. Its totient is φ = 53947382160.

The previous prime is 68397574123. The next prime is 68397574169. The reversal of 68397574165 is 56147579386.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-68397574165 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 (68397574169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96334257 + ... + 96334966.

It is an arithmetic number, because the mean of its divisors is an integer number (10404138096).

Almost surely, 2^68397574165 is an apocalyptic number.

It is an amenable number.

68397574165 is a deficient number, since it is larger than the sum of its proper divisors (14835530603).

68397574165 is a wasteful number, since it uses less digits than its factorization.

68397574165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192669299.

The product of its digits is 38102400, while the sum is 61.

The spelling of 68397574165 in words is "sixty-eight billion, three hundred ninety-seven million, five hundred seventy-four thousand, one hundred sixty-five".