2021344563 has 8 divisors (see below), whose sum is σ = 3080144128. Its totient is φ = 1155054024.

The previous prime is 2021344561. The next prime is 2021344603. The reversal of 2021344563 is 3654431202.

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

It is not a de Polignac number, because 2021344563 - 2¹ = 2021344561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021344563.

It is not an unprimeable number, because it can be changed into a prime (2021344561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48127231 + ... + 48127272.

It is an arithmetic number, because the mean of its divisors is an integer number (385018016).

Almost surely, 2^2021344563 is an apocalyptic number.

2021344563 is a deficient number, since it is larger than the sum of its proper divisors (1058799565).

2021344563 is an equidigital number, since it uses as much as digits as its factorization.

2021344563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96254513.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2021344563 is about 44959.3656872514. The cubic root of 2021344563 is about 1264.3872764711.

Adding to 2021344563 its reverse (3654431202), we get a palindrome (5675775765).

The spelling of 2021344563 in words is "two billion, twenty-one million, three hundred forty-four thousand, five hundred sixty-three".