4426444561 has 8 divisors (see below), whose sum is σ = 5518684224. Its totient is φ = 3449177520.

The previous prime is 4426444549. The next prime is 4426444567. The reversal of 4426444561 is 1654446244.

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

It is a cyclic number.

It is not a de Polignac number, because 4426444561 - 2⁷ = 4426444433 is a prime.

It is a super-2 number, since 2×4426444561² = 39186822903212965442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4426444567) 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, 28743070 + ... + 28743223.

It is an arithmetic number, because the mean of its divisors is an integer number (689835528).

Almost surely, 2^4426444561 is an apocalyptic number.

It is an amenable number.

4426444561 is a deficient number, since it is larger than the sum of its proper divisors (1092239663).

4426444561 is a wasteful number, since it uses less digits than its factorization.

4426444561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57486311.

The product of its digits is 368640, while the sum is 40.

The square root of 4426444561 is about 66531.5305776141. The cubic root of 4426444561 is about 1641.9188032236.

The spelling of 4426444561 in words is "four billion, four hundred twenty-six million, four hundred forty-four thousand, five hundred sixty-one".