68064645 has 32 divisors (see below), whose sum is σ = 122025600. Its totient is φ = 32106240.

The previous prime is 68064637. The next prime is 68064649. The reversal of 68064645 is 54646086.

It is not a de Polignac number, because 68064645 - 2³ = 68064637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68064649) 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 31 ways as a sum of consecutive naturals, for example, 531 + ... + 11679.

It is an arithmetic number, because the mean of its divisors is an integer number (3813300).

Almost surely, 2^68064645 is an apocalyptic number.

It is an amenable number.

68064645 is a deficient number, since it is larger than the sum of its proper divisors (53960955).

68064645 is a wasteful number, since it uses less digits than its factorization.

68064645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 68064645 is about 8250.1299989758. The cubic root of 68064645 is about 408.2948116745.

The spelling of 68064645 in words is "sixty-eight million, sixty-four thousand, six hundred forty-five".