8218766994 has 32 divisors (see below), whose sum is σ = 17481168576. Its totient is φ = 2567070720.

The previous prime is 8218766989. The next prime is 8218766999. The reversal of 8218766994 is 4996678128.

It is an interprime number because it is at equal distance from previous prime (8218766989) and next prime (8218766999).

It is not an unprimeable number, because it can be changed into a prime (8218766999) 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, 154327 + ... + 200634.

It is an arithmetic number, because the mean of its divisors is an integer number (546286518).

Almost surely, 2^8218766994 is an apocalyptic number.

8218766994 is an abundant number, since it is smaller than the sum of its proper divisors (9262401582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8218766994 is a wasteful number, since it uses less digits than its factorization.

8218766994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355210.

The product of its digits is 10450944, while the sum is 60.

The square root of 8218766994 is about 90657.4155488673. The cubic root of 8218766994 is about 2018.0668852246.

The spelling of 8218766994 in words is "eight billion, two hundred eighteen million, seven hundred sixty-six thousand, nine hundred ninety-four".