650577749057 has 8 divisors (see below), whose sum is σ = 679019944680. Its totient is φ = 622734336640.

The previous prime is 650577749051. The next prime is 650577749117. The reversal of 650577749057 is 750947775056.

It is a happy number.

It is a Cunningham number, because it is equal to 806584²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 650577749056 = 1^2 + 806584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 650577749057 - 2⁶ = 650577748993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650577749051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 149693582 + ... + 149697927.

It is an arithmetic number, because the mean of its divisors is an integer number (84877493085).

Almost surely, 2^650577749057 is an apocalyptic number.

It is an amenable number.

650577749057 is a deficient number, since it is larger than the sum of its proper divisors (28442195623).

650577749057 is a wasteful number, since it uses less digits than its factorization.

650577749057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299391603.

The product of its (nonzero) digits is 64827000, while the sum is 62.

The spelling of 650577749057 in words is "six hundred fifty billion, five hundred seventy-seven million, seven hundred forty-nine thousand, fifty-seven".