4650806989 has 4 divisors (see below), whose sum is σ = 4650962940. Its totient is φ = 4650651040.

The previous prime is 4650806981. The next prime is 4650806999. The reversal of 4650806989 is 9896080564.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4350062025 + 300744964 = 65955^2 + 17342^2 .

It is a cyclic number.

It is not a de Polignac number, because 4650806989 - 2³ = 4650806981 is a prime.

It is a super-2 number, since 2×4650806989² = 43260011297862492242, which 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 (4650806981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17722 + ... + 98059.

It is an arithmetic number, because the mean of its divisors is an integer number (1162740735).

Almost surely, 2^4650806989 is an apocalyptic number.

It is an amenable number.

4650806989 is a deficient number, since it is larger than the sum of its proper divisors (155951).

4650806989 is a wasteful number, since it uses less digits than its factorization.

4650806989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155950.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The square root of 4650806989 is about 68196.8253586631. The cubic root of 4650806989 is about 1669.2040847364.

The spelling of 4650806989 in words is "four billion, six hundred fifty million, eight hundred six thousand, nine hundred eighty-nine".