4463668649 has 8 divisors (see below), whose sum is σ = 4871178048. Its totient is φ = 4056446160.

The previous prime is 4463668637. The next prime is 4463668679. The reversal of 4463668649 is 9468663644.

4463668649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4463668649 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4463668594 and 4463668603.

It is not an unprimeable number, because it can be changed into a prime (4463668609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38522 + ... + 102035.

It is an arithmetic number, because the mean of its divisors is an integer number (608897256).

Almost surely, 2^4463668649 is an apocalyptic number.

It is an amenable number.

4463668649 is a deficient number, since it is larger than the sum of its proper divisors (407509399).

4463668649 is a wasteful number, since it uses less digits than its factorization.

4463668649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143455.

The product of its digits is 17915904, while the sum is 56.

The square root of 4463668649 is about 66810.6926247588. The cubic root of 4463668649 is about 1646.5085214535.

The spelling of 4463668649 in words is "four billion, four hundred sixty-three million, six hundred sixty-eight thousand, six hundred forty-nine".