84886570609 has 9 divisors (see below), whose sum is σ = 86745088857. Its totient is φ = 83067071124.

The previous prime is 84886570597. The next prime is 84886570619. The reversal of 84886570609 is 90607568848.

The square root of 84886570609 is 291353.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 84886570609 - 2¹¹ = 84886568561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84886570619) 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 8 ways as a sum of consecutive naturals, for example, 13690492 + ... + 13696690.

Almost surely, 2^84886570609 is an apocalyptic number.

84886570609 is the 291353-rd square number.

84886570609 is the 145677-th centered octagonal number.

It is an amenable number.

84886570609 is a deficient number, since it is larger than the sum of its proper divisors (1858518248).

84886570609 is an frugal number, since it uses more digits than its factorization.

84886570609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12492 (or 6246 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 84886570609 in words is "eighty-four billion, eight hundred eighty-six million, five hundred seventy thousand, six hundred nine".