4021443418987 has 2 divisors, whose sum is σ = 4021443418988. Its totient is φ = 4021443418986.

The previous prime is 4021443418963. The next prime is 4021443418999. The reversal of 4021443418987 is 7898143441204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021443418987 is a prime.

It is a super-2 number, since 2×4021443418987² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4021443418957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010721709493 + 2010721709494.

It is an arithmetic number, because the mean of its divisors is an integer number (2010721709494).

Almost surely, 2^{4021443418987} is an apocalyptic number.

4021443418987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021443418987 is an equidigital number, since it uses as much as digits as its factorization.

4021443418987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 4021443418987 in words is "four trillion, twenty-one billion, four hundred forty-three million, four hundred eighteen thousand, nine hundred eighty-seven".