5218742889 has 6 divisors (see below), whose sum is σ = 7538184186. Its totient is φ = 3479161920.

The previous prime is 5218742873. The next prime is 5218742899. The reversal of 5218742889 is 9882478125.

It can be written as a sum of positive squares in only one way, i.e., 4651922025 + 566820864 = 68205^2 + 23808^2 .

It is not a de Polignac number, because 5218742889 - 2⁴ = 5218742873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5218742899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289930152 + ... + 289930169.

It is an arithmetic number, because the mean of its divisors is an integer number (1256364031).

Almost surely, 2^5218742889 is an apocalyptic number.

It is an amenable number.

5218742889 is a deficient number, since it is larger than the sum of its proper divisors (2319441297).

5218742889 is a wasteful number, since it uses less digits than its factorization.

5218742889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579860327 (or 579860324 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 5218742889 is about 72240.8671667222. The cubic root of 5218742889 is about 1734.5572306250.

The spelling of 5218742889 in words is "five billion, two hundred eighteen million, seven hundred forty-two thousand, eight hundred eighty-nine".