4421648057 has 4 divisors (see below), whose sum is σ = 4436739300. Its totient is φ = 4406556816.

The previous prime is 4421648039. The next prime is 4421648069. The reversal of 4421648057 is 7508461244.

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 4317015616 + 104632441 = 65704^2 + 10229^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421648057 - 2¹⁴ = 4421631673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4421648857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7545182 + ... + 7545767.

It is an arithmetic number, because the mean of its divisors is an integer number (1109184825).

Almost surely, 2^4421648057 is an apocalyptic number.

It is an amenable number.

4421648057 is a deficient number, since it is larger than the sum of its proper divisors (15091243).

4421648057 is a wasteful number, since it uses less digits than its factorization.

4421648057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15091242.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 4421648057 is about 66495.4739587590. The cubic root of 4421648057 is about 1641.3255267360.

The spelling of 4421648057 in words is "four billion, four hundred twenty-one million, six hundred forty-eight thousand, fifty-seven".