68468419838 has 32 divisors (see below), whose sum is σ = 128289874944. Its totient is φ = 26682128352.

The previous prime is 68468419823. The next prime is 68468419841. The reversal of 68468419838 is 83891486486.

It is a super-2 number, since 2×68468419838² (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 15 ways as a sum of consecutive naturals, for example, 2795270 + ... + 2819657.

It is an arithmetic number, because the mean of its divisors is an integer number (4009058592).

Almost surely, 2^68468419838 is an apocalyptic number.

68468419838 is a deficient number, since it is larger than the sum of its proper divisors (59821455106).

68468419838 is a wasteful number, since it uses less digits than its factorization.

68468419838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615016.

The product of its digits is 63700992, while the sum is 65.

The spelling of 68468419838 in words is "sixty-eight billion, four hundred sixty-eight million, four hundred nineteen thousand, eight hundred thirty-eight".