646052624322 has 16 divisors (see below), whose sum is σ = 1476691712832. Its totient is φ = 184586464080.

The previous prime is 646052624317. The next prime is 646052624353. The reversal of 646052624322 is 223426250646.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 15382205341 = 646052624322 / (6 + 4 + 6 + 0 + 5 + 2 + 6 + 2 + 4 + 3 + 2 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7691102629 + ... + 7691102712.

It is an arithmetic number, because the mean of its divisors is an integer number (92293232052).

Almost surely, 2^646052624322 is an apocalyptic number.

646052624322 is an abundant number, since it is smaller than the sum of its proper divisors (830639088510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646052624322 is a wasteful number, since it uses less digits than its factorization.

646052624322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382205353.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 646052624322 its reverse (223426250646), we get a palindrome (869478874968).

The spelling of 646052624322 in words is "six hundred forty-six billion, fifty-two million, six hundred twenty-four thousand, three hundred twenty-two".