8045421068 has 24 divisors (see below), whose sum is σ = 14803810560. Its totient is φ = 3818431760.

The previous prime is 8045421049. The next prime is 8045421079. The reversal of 8045421068 is 8601245408.

It is a happy number.

It is a super-2 number, since 2×8045421068² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 321728 + ... + 345831.

It is an arithmetic number, because the mean of its divisors is an integer number (616825440).

Almost surely, 2^8045421068 is an apocalyptic number.

It is an amenable number.

8045421068 is a deficient number, since it is larger than the sum of its proper divisors (6758389492).

8045421068 is a wasteful number, since it uses less digits than its factorization.

8045421068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667717 (or 667715 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 8045421068 is about 89696.2712045490. The cubic root of 8045421068 is about 2003.7779480607. Note that the first 3 decimals are identical.

The spelling of 8045421068 in words is "eight billion, forty-five million, four hundred twenty-one thousand, sixty-eight".