5218789646 has 32 divisors (see below), whose sum is σ = 9039900672. Its totient is φ = 2213396640.

The previous prime is 5218789633. The next prime is 5218789651. The reversal of 5218789646 is 6469878125.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5218789591 and 5218789600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521825 + ... + 531731.

It is an arithmetic number, because the mean of its divisors is an integer number (282496896).

Almost surely, 2^5218789646 is an apocalyptic number.

5218789646 is a deficient number, since it is larger than the sum of its proper divisors (3821111026).

5218789646 is a wasteful number, since it uses less digits than its factorization.

5218789646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10304.

The product of its digits is 5806080, while the sum is 56.

The square root of 5218789646 is about 72241.1907847594. The cubic root of 5218789646 is about 1734.5624108284.

The spelling of 5218789646 in words is "five billion, two hundred eighteen million, seven hundred eighty-nine thousand, six hundred forty-six".