8042845778 has 32 divisors (see below), whose sum is σ = 13776998400. Its totient is φ = 3488058000.

The previous prime is 8042845777. The next prime is 8042845793. The reversal of 8042845778 is 8775482408.

It is not an unprimeable number, because it can be changed into a prime (8042845777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34628 + ... + 131471.

It is an arithmetic number, because the mean of its divisors is an integer number (430531200).

Almost surely, 2^8042845778 is an apocalyptic number.

8042845778 is a deficient number, since it is larger than the sum of its proper divisors (5734152622).

8042845778 is a wasteful number, since it uses less digits than its factorization.

8042845778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166214.

The product of its (nonzero) digits is 4014080, while the sum is 53.

The square root of 8042845778 is about 89681.9144420992. The cubic root of 8042845778 is about 2003.5641262292.

The spelling of 8042845778 in words is "eight billion, forty-two million, eight hundred forty-five thousand, seven hundred seventy-eight".