646586847352 has 16 divisors (see below), whose sum is σ = 1265061223440. Its totient is φ = 309237187776.

The previous prime is 646586847341. The next prime is 646586847353. The reversal of 646586847352 is 253748685646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646586847353) 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, 1757029293 + ... + 1757029660.

It is an arithmetic number, because the mean of its divisors is an integer number (79066326465).

Almost surely, 2^646586847352 is an apocalyptic number.

It is an amenable number.

646586847352 is a deficient number, since it is larger than the sum of its proper divisors (618474376088).

646586847352 is a wasteful number, since it uses less digits than its factorization.

646586847352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514058982 (or 3514058978 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 64.

The spelling of 646586847352 in words is "six hundred forty-six billion, five hundred eighty-six million, eight hundred forty-seven thousand, three hundred fifty-two".