869814564 has 48 divisors (see below), whose sum is σ = 2061722880. Its totient is φ = 285361920.

The previous prime is 869814563. The next prime is 869814587. The reversal of 869814564 is 465418968.

It is not an unprimeable number, because it can be changed into a prime (869814563) 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 15 ways as a sum of consecutive naturals, for example, 629154 + ... + 630534.

It is an arithmetic number, because the mean of its divisors is an integer number (42952560).

Almost surely, 2^869814564 is an apocalyptic number.

It is an amenable number.

869814564 is an abundant number, since it is smaller than the sum of its proper divisors (1191908316).

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

869814564 is a wasteful number, since it uses less digits than its factorization.

869814564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2178 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 869814564 is about 29492.6188053893. The cubic root of 869814564 is about 954.5724405712.

The spelling of 869814564 in words is "eight hundred sixty-nine million, eight hundred fourteen thousand, five hundred sixty-four".