5205986689 has 4 divisors (see below), whose sum is σ = 5208512256. Its totient is φ = 5203461124.

The previous prime is 5205986671. The next prime is 5205986713. The reversal of 5205986689 is 9866895025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5205986689 - 2²⁹ = 4669115777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205986629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259689 + ... + 1263814.

It is an arithmetic number, because the mean of its divisors is an integer number (1302128064).

Almost surely, 2^5205986689 is an apocalyptic number.

It is an amenable number.

5205986689 is a deficient number, since it is larger than the sum of its proper divisors (2525567).

5205986689 is a wasteful number, since it uses less digits than its factorization.

5205986689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525566.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The square root of 5205986689 is about 72152.5237881531. The cubic root of 5205986689 is about 1733.1428152000.

The spelling of 5205986689 in words is "five billion, two hundred five million, nine hundred eighty-six thousand, six hundred eighty-nine".