68042075 has 24 divisors (see below), whose sum is σ = 91770912. Its totient is φ = 49835520.

The previous prime is 68042071. The next prime is 68042077. The reversal of 68042075 is 57024086.

It is not a de Polignac number, because 68042075 - 2² = 68042071 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68042071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13562 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (3823788).

Almost surely, 2^68042075 is an apocalyptic number.

68042075 is a deficient number, since it is larger than the sum of its proper divisors (23728837).

68042075 is a wasteful number, since it uses less digits than its factorization.

68042075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4386 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 68042075 is about 8248.7620283289. The cubic root of 68042075 is about 408.2496769712.

The spelling of 68042075 in words is "sixty-eight million, forty-two thousand, seventy-five".