4021420044269 has 2 divisors, whose sum is σ = 4021420044270. Its totient is φ = 4021420044268.

The previous prime is 4021420044263. The next prime is 4021420044277. The reversal of 4021420044269 is 9624400241204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3409525320100 + 611894724169 = 1846490^2 + 782237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021420044269 is a prime.

It is a super-3 number, since 3×4021420044269³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021420044263) 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, 2010710022134 + 2010710022135.

It is an arithmetic number, because the mean of its divisors is an integer number (2010710022135).

Almost surely, 2^{4021420044269} is an apocalyptic number.

It is an amenable number.

4021420044269 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021420044269 is an equidigital number, since it uses as much as digits as its factorization.

4021420044269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 4021420044269 in words is "four trillion, twenty-one billion, four hundred twenty million, forty-four thousand, two hundred sixty-nine".