68081722 has 8 divisors (see below), whose sum is σ = 102172500. Its totient is φ = 34024224.

The previous prime is 68081711. The next prime is 68081729. The reversal of 68081722 is 22718086.

It can be written as a sum of positive squares in 2 ways, for example, as 68046001 + 35721 = 8249^2 + 189^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68081729) 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, 2347 + ... + 11902.

Almost surely, 2^68081722 is an apocalyptic number.

68081722 is a deficient number, since it is larger than the sum of its proper divisors (34090778).

68081722 is a wasteful number, since it uses less digits than its factorization.

68081722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16640.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 68081722 is about 8251.1648874568. The cubic root of 68081722 is about 408.3289550366.

The spelling of 68081722 in words is "sixty-eight million, eighty-one thousand, seven hundred twenty-two".