68442228907 has 24 divisors (see below), whose sum is σ = 74611998720. Its totient is φ = 62752266720.

The previous prime is 68442228857. The next prime is 68442228919. The reversal of 68442228907 is 70982224486.

It is a happy number.

It is not a de Polignac number, because 68442228907 - 2¹⁵ = 68442196139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68442228977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30567094 + ... + 30569332.

It is an arithmetic number, because the mean of its divisors is an integer number (3108833280).

Almost surely, 2^68442228907 is an apocalyptic number.

68442228907 is a deficient number, since it is larger than the sum of its proper divisors (6169769813).

68442228907 is a wasteful number, since it uses less digits than its factorization.

68442228907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 68442228907 in words is "sixty-eight billion, four hundred forty-two million, two hundred twenty-eight thousand, nine hundred seven".