68085810 has 48 divisors (see below), whose sum is σ = 190643544. Its totient is φ = 16759296.

The previous prime is 68085791. The next prime is 68085811. The reversal of 68085810 is 1858086.

It can be written as a sum of positive squares in 4 ways, for example, as 42653961 + 25431849 = 6531^2 + 5043^2 .

It is a super-2 number, since 2×68085810² = 9271355046712200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68085811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27927 + ... + 30266.

Almost surely, 2^68085810 is an apocalyptic number.

68085810 is an abundant number, since it is smaller than the sum of its proper divisors (122557734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68085810 is a wasteful number, since it uses less digits than its factorization.

68085810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58219 (or 58216 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 68085810 is about 8251.4126063360. The cubic root of 68085810 is about 408.3371276430.

The spelling of 68085810 in words is "sixty-eight million, eighty-five thousand, eight hundred ten".