213128777589 has 32 divisors (see below), whose sum is σ = 370323313920. Its totient is φ = 105806656512.

The previous prime is 213128777579. The next prime is 213128777627. The reversal of 213128777589 is 985777821312.

It is not a de Polignac number, because 213128777589 - 2⁷ = 213128777461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213128777549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22956874 + ... + 22966155.

It is an arithmetic number, because the mean of its divisors is an integer number (11572603560).

Almost surely, 2^213128777589 is an apocalyptic number.

It is an amenable number.

213128777589 is a deficient number, since it is larger than the sum of its proper divisors (157194536331).

213128777589 is a wasteful number, since it uses less digits than its factorization.

213128777589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45923069.

The product of its digits is 11854080, while the sum is 60.

The spelling of 213128777589 in words is "two hundred thirteen billion, one hundred twenty-eight million, seven hundred seventy-seven thousand, five hundred eighty-nine".