68825359679 has 4 divisors (see below), whose sum is σ = 68833878384. Its totient is φ = 68816840976.

The previous prime is 68825359609. The next prime is 68825359693. The reversal of 68825359679 is 97695352886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68825359679 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 (68825359609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247222 + ... + 4263395.

It is an arithmetic number, because the mean of its divisors is an integer number (17208469596).

Almost surely, 2^68825359679 is an apocalyptic number.

68825359679 is a deficient number, since it is larger than the sum of its proper divisors (8518705).

68825359679 is an equidigital number, since it uses as much as digits as its factorization.

68825359679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518704.

The product of its digits is 195955200, while the sum is 68.

The spelling of 68825359679 in words is "sixty-eight billion, eight hundred twenty-five million, three hundred fifty-nine thousand, six hundred seventy-nine".