646234243300 has 36 divisors (see below), whose sum is σ = 1402436887600. Its totient is φ = 258473682720.

The previous prime is 646234243261. The next prime is 646234243307. The reversal of 646234243300 is 3342432646.

It is a self number, because there is not a number n which added to its sum of digits gives 646234243300.

It is not an unprimeable number, because it can be changed into a prime (646234243307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083151 + ... + 1570249.

Almost surely, 2^646234243300 is an apocalyptic number.

It is an amenable number.

646234243300 is an abundant number, since it is smaller than the sum of its proper divisors (756202644300).

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

646234243300 is a wasteful number, since it uses less digits than its factorization.

646234243300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500380 (or 500373 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 646234243300 its reverse (3342432646), we get a palindrome (649576675946).

The spelling of 646234243300 in words is "six hundred forty-six billion, two hundred thirty-four million, two hundred forty-three thousand, three hundred".