2021334434489 has 2 divisors, whose sum is σ = 2021334434490. Its totient is φ = 2021334434488.

The previous prime is 2021334434477. The next prime is 2021334434501. The reversal of 2021334434489 is 9844344331202.

It is a balanced prime because it is at equal distance from previous prime (2021334434477) and next prime (2021334434501).

It can be written as a sum of positive squares in only one way, i.e., 1552017640000 + 469316794489 = 1245800^2 + 685067^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021334434489 - 2²⁰ = 2021333385913 is a prime.

It is a super-2 number, since 2×2021334434489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021334434419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010667217244 + 1010667217245.

It is an arithmetic number, because the mean of its divisors is an integer number (1010667217245).

Almost surely, 2^{2021334434489} is an apocalyptic number.

It is an amenable number.

2021334434489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021334434489 is an equidigital number, since it uses as much as digits as its factorization.

2021334434489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 2021334434489 in words is "two trillion, twenty-one billion, three hundred thirty-four million, four hundred thirty-four thousand, four hundred eighty-nine".