818473868 has 24 divisors (see below), whose sum is σ = 1542784320. Its totient is φ = 378680400.

The previous prime is 818473867. The next prime is 818473879. The reversal of 818473868 is 868374818.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (818473861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121958 + ... + 128493.

It is an arithmetic number, because the mean of its divisors is an integer number (64282680).

Almost surely, 2^818473868 is an apocalyptic number.

It is an amenable number.

818473868 is a deficient number, since it is larger than the sum of its proper divisors (724310452).

818473868 is a wasteful number, since it uses less digits than its factorization.

818473868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250517 (or 250515 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 818473868 is about 28608.9822957756. The cubic root of 818473868 is about 935.4091331952.

The spelling of 818473868 in words is "eight hundred eighteen million, four hundred seventy-three thousand, eight hundred sixty-eight".