68866742 has 16 divisors (see below), whose sum is σ = 118188960. Its totient is φ = 29481408.

The previous prime is 68866739. The next prime is 68866751. The reversal of 68866742 is 24766886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13628 + ... + 17984.

It is an arithmetic number, because the mean of its divisors is an integer number (7386810).

Almost surely, 2^68866742 is an apocalyptic number.

68866742 is a deficient number, since it is larger than the sum of its proper divisors (49322218).

68866742 is a wasteful number, since it uses less digits than its factorization.

68866742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its digits is 774144, while the sum is 47.

The square root of 68866742 is about 8298.5987973874. The cubic root of 68866742 is about 409.8923810343.

The spelling of 68866742 in words is "sixty-eight million, eight hundred sixty-six thousand, seven hundred forty-two".