869952818 has 32 divisors (see below), whose sum is σ = 1503111168. Its totient is φ = 369910800.

The previous prime is 869952803. The next prime is 869952821. The reversal of 869952818 is 818259968.

It is a super-2 number, since 2×869952818² = 1513635811092282248, which 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 15 ways as a sum of consecutive naturals, for example, 1771553 + ... + 1772043.

It is an arithmetic number, because the mean of its divisors is an integer number (46972224).

Almost surely, 2^869952818 is an apocalyptic number.

869952818 is a deficient number, since it is larger than the sum of its proper divisors (633158350).

869952818 is a wasteful number, since it uses less digits than its factorization.

869952818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 2488320, while the sum is 56.

The square root of 869952818 is about 29494.9625868554. The cubic root of 869952818 is about 954.6230132151.

The spelling of 869952818 in words is "eight hundred sixty-nine million, nine hundred fifty-two thousand, eight hundred eighteen".