68008168479 has 4 divisors (see below), whose sum is σ = 90677557976. Its totient is φ = 45338778984.

The previous prime is 68008168471. The next prime is 68008168537. The reversal of 68008168479 is 97486180086.

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

It is not a de Polignac number, because 68008168479 - 2³ = 68008168471 is a prime.

It is a super-2 number, since 2×68008168479² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68008168471) 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, 11334694744 + ... + 11334694749.

It is an arithmetic number, because the mean of its divisors is an integer number (22669389494).

Almost surely, 2^68008168479 is an apocalyptic number.

68008168479 is a deficient number, since it is larger than the sum of its proper divisors (22669389497).

68008168479 is a wasteful number, since it uses less digits than its factorization.

68008168479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22669389496.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 68008168479 in words is "sixty-eight billion, eight million, one hundred sixty-eight thousand, four hundred seventy-nine".