650790478669 has 16 divisors (see below), whose sum is σ = 679798656000. Its totient is φ = 621842146816.

The previous prime is 650790478651. The next prime is 650790478691. The reversal of 650790478669 is 966874097056.

It is a cyclic number.

It is not a de Polignac number, because 650790478669 - 2³³ = 642200544077 is a prime.

It is a super-2 number, since 2×650790478669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650790478649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125414727 + ... + 125419915.

It is an arithmetic number, because the mean of its divisors is an integer number (42487416000).

Almost surely, 2^650790478669 is an apocalyptic number.

It is an amenable number.

650790478669 is a deficient number, since it is larger than the sum of its proper divisors (29008177331).

650790478669 is a wasteful number, since it uses less digits than its factorization.

650790478669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884.

The product of its (nonzero) digits is 137168640, while the sum is 67.

The spelling of 650790478669 in words is "six hundred fifty billion, seven hundred ninety million, four hundred seventy-eight thousand, six hundred sixty-nine".