4427665650 has 36 divisors (see below), whose sum is σ = 11895662922. Its totient is φ = 1180710720.

The previous prime is 4427665631. The next prime is 4427665651. The reversal of 4427665650 is 565667244.

4427665650 is a `hidden beast` number, since 4 + 4 + 27 + 66 + 565 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4309791201 + 117874449 = 65649^2 + 10857^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 4427665596 and 4427665605.

It is not an unprimeable number, because it can be changed into a prime (4427665651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4919179 + ... + 4920078.

Almost surely, 2^4427665650 is an apocalyptic number.

4427665650 is an abundant number, since it is smaller than the sum of its proper divisors (7467997272).

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

4427665650 is a wasteful number, since it uses less digits than its factorization.

4427665650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839275 (or 9839267 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The square root of 4427665650 is about 66540.7067140108. The cubic root of 4427665650 is about 1642.0697704863.

The spelling of 4427665650 in words is "four billion, four hundred twenty-seven million, six hundred sixty-five thousand, six hundred fifty".