4405643653 has 8 divisors (see below), whose sum is σ = 4764051072. Its totient is φ = 4058264256.

The previous prime is 4405643611. The next prime is 4405643657. The reversal of 4405643653 is 3563465044.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-4405643653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405643657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756175 + ... + 2757772.

It is an arithmetic number, because the mean of its divisors is an integer number (595506384).

Almost surely, 2^4405643653 is an apocalyptic number.

It is an amenable number.

4405643653 is a deficient number, since it is larger than the sum of its proper divisors (358407419).

4405643653 is a wasteful number, since it uses less digits than its factorization.

4405643653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514011.

The product of its (nonzero) digits is 518400, while the sum is 40.

The square root of 4405643653 is about 66375.0228097889. The cubic root of 4405643653 is about 1639.3428426226.

The spelling of 4405643653 in words is "four billion, four hundred five million, six hundred forty-three thousand, six hundred fifty-three".