68181322 has 24 divisors (see below), whose sum is σ = 119034468. Its totient is φ = 29166720.

The previous prime is 68181317. The next prime is 68181331. The reversal of 68181322 is 22318186.

It can be written as a sum of positive squares in 2 ways, for example, as 64304361 + 3876961 = 8019^2 + 1969^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4173 + ... + 12400.

Almost surely, 2^68181322 is an apocalyptic number.

68181322 is a deficient number, since it is larger than the sum of its proper divisors (50853146).

68181322 is a wasteful number, since it uses less digits than its factorization.

68181322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614 (or 16603 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 68181322 is about 8257.1981930919. The cubic root of 68181322 is about 408.5279793187.

The spelling of 68181322 in words is "sixty-eight million, one hundred eighty-one thousand, three hundred twenty-two".