646450462334 has 16 divisors (see below), whose sum is σ = 972140067360. Its totient is φ = 322404161280.

The previous prime is 646450462313. The next prime is 646450462417. The reversal of 646450462334 is 433264054646.

It is a happy number.

It is a congruent number.

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, 3312662 + ... + 3502374.

It is an arithmetic number, because the mean of its divisors is an integer number (60758754210).

Almost surely, 2^646450462334 is an apocalyptic number.

646450462334 is a deficient number, since it is larger than the sum of its proper divisors (325689605026).

646450462334 is a wasteful number, since it uses less digits than its factorization.

646450462334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194035.

The product of its (nonzero) digits is 4976640, while the sum is 47.

The spelling of 646450462334 in words is "six hundred forty-six billion, four hundred fifty million, four hundred sixty-two thousand, three hundred thirty-four".