84434388041869 has 2 divisors, whose sum is σ = 84434388041870. Its totient is φ = 84434388041868.

The previous prime is 84434388041701. The next prime is 84434388041873. The reversal of 84434388041869 is 96814088343448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51552902601225 + 32881485440644 = 7180035^2 + 5734238^2 .

It is a cyclic number.

It is not a de Polignac number, because 84434388041869 - 2¹⁷ = 84434387910797 is a prime.

It is a super-2 number, since 2×84434388041869² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84434388041798 and 84434388041807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84434388041369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42217194020934 + 42217194020935.

It is an arithmetic number, because the mean of its divisors is an integer number (42217194020935).

Almost surely, 2^{84434388041869} is an apocalyptic number.

It is an amenable number.

84434388041869 is a deficient number, since it is larger than the sum of its proper divisors (1).

84434388041869 is an equidigital number, since it uses as much as digits as its factorization.

84434388041869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 509607936, while the sum is 70.

The spelling of 84434388041869 in words is "eighty-four trillion, four hundred thirty-four billion, three hundred eighty-eight million, forty-one thousand, eight hundred sixty-nine".