864552818 has 8 divisors (see below), whose sum is σ = 1300252080. Its totient is φ = 431135460.

The previous prime is 864552811. The next prime is 864552823. The reversal of 864552818 is 818255468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×864552818² = 1494903150223482248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (864552811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569528 + ... + 571043.

It is an arithmetic number, because the mean of its divisors is an integer number (162531510).

Almost surely, 2^864552818 is an apocalyptic number.

864552818 is a deficient number, since it is larger than the sum of its proper divisors (435699262).

864552818 is a wasteful number, since it uses less digits than its factorization.

864552818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140952.

The product of its digits is 614400, while the sum is 47.

The square root of 864552818 is about 29403.2790348288. The cubic root of 864552818 is about 952.6437230281.

The spelling of 864552818 in words is "eight hundred sixty-four million, five hundred fifty-two thousand, eight hundred eighteen".