2021440344587 has 2 divisors, whose sum is σ = 2021440344588. Its totient is φ = 2021440344586.

The previous prime is 2021440344509. The next prime is 2021440344593. The reversal of 2021440344587 is 7854430441202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021440344587 - 2¹⁸ = 2021440082443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021440344487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010720172293 + 1010720172294.

It is an arithmetic number, because the mean of its divisors is an integer number (1010720172294).

Almost surely, 2^{2021440344587} is an apocalyptic number.

2021440344587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021440344587 is an equidigital number, since it uses as much as digits as its factorization.

2021440344587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 860160, while the sum is 44.

Adding to 2021440344587 its reverse (7854430441202), we get a palindrome (9875870785789).

The spelling of 2021440344587 in words is "two trillion, twenty-one billion, four hundred forty million, three hundred forty-four thousand, five hundred eighty-seven".