649529706584 has 24 divisors (see below), whose sum is σ = 1338648519180. Its totient is φ = 295240775280.

The previous prime is 649529706569. The next prime is 649529706629. The reversal of 649529706584 is 485607925946.

It is a self number, because there is not a number n which added to its sum of digits gives 649529706584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335499914 + ... + 335501849.

Almost surely, 2^649529706584 is an apocalyptic number.

It is an amenable number.

649529706584 is an abundant number, since it is smaller than the sum of its proper divisors (689118812596).

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

649529706584 is a wasteful number, since it uses less digits than its factorization.

649529706584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671001791 (or 671001776 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 65.

The spelling of 649529706584 in words is "six hundred forty-nine billion, five hundred twenty-nine million, seven hundred six thousand, five hundred eighty-four".