5216412644 has 12 divisors (see below), whose sum is σ = 9175062204. Its totient is φ = 2594966304.

The previous prime is 5216412631. The next prime is 5216412647. The reversal of 5216412644 is 4462146125.

It can be written as a sum of positive squares in 2 ways, for example, as 4344391744 + 872020900 = 65912^2 + 29530^2 .

It is not an unprimeable number, because it can be changed into a prime (5216412647) 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 3 ways as a sum of consecutive naturals, for example, 3309119 + ... + 3310694.

It is an arithmetic number, because the mean of its divisors is an integer number (764588517).

Almost surely, 2^5216412644 is an apocalyptic number.

It is an amenable number.

5216412644 is a deficient number, since it is larger than the sum of its proper divisors (3958649560).

5216412644 is a wasteful number, since it uses less digits than its factorization.

5216412644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620014 (or 6620012 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 5216412644 is about 72224.7370642497. The cubic root of 5216412644 is about 1734.2990238023.

Adding to 5216412644 its reverse (4462146125), we get a palindrome (9678558769).

The spelling of 5216412644 in words is "five billion, two hundred sixteen million, four hundred twelve thousand, six hundred forty-four".