650639050884 has 27 divisors (see below), whose sum is σ = 1644683168037. Its totient is φ = 216878070384.

The previous prime is 650639050879. The next prime is 650639050931. The reversal of 650639050884 is 488050936056.

It is a happy number.

The square root of 650639050884 is 806622.

It is a perfect power (a square), and thus also a powerful number.

650639050884 is a `hidden beast` number, since 6 + 50 + 6 + 3 + 9 + 0 + 508 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 451301804100 + 199337246784 = 671790^2 + 446472^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 650639050884.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 4772514 + ... + 4906950.

Almost surely, 2^650639050884 is an apocalyptic number.

650639050884 is the 806622-nd square number.

It is an amenable number.

650639050884 is an abundant number, since it is smaller than the sum of its proper divisors (994044117153).

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

650639050884 is an frugal number, since it uses more digits than its factorization.

650639050884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268884 (or 134442 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 650639050884 in words is "six hundred fifty billion, six hundred thirty-nine million, fifty thousand, eight hundred eighty-four".