650887267648 has 28 divisors (see below), whose sum is σ = 1291935167712. Its totient is φ = 325360296320.

The previous prime is 650887267619. The next prime is 650887267687. The reversal of 650887267648 is 846762788056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049890 + ... + 1550497.

It is an arithmetic number, because the mean of its divisors is an integer number (46140541704).

Almost surely, 2^650887267648 is an apocalyptic number.

It is an amenable number.

650887267648 is a deficient number, since it is larger than the sum of its proper divisors (641047900064).

650887267648 is a wasteful number, since it uses less digits than its factorization.

650887267648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604310 (or 2604300 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 650887267648 in words is "six hundred fifty billion, eight hundred eighty-seven million, two hundred sixty-seven thousand, six hundred forty-eight".