84057443389 has 2 divisors, whose sum is σ = 84057443390. Its totient is φ = 84057443388.

The previous prime is 84057443383. The next prime is 84057443467. The reversal of 84057443389 is 98334475048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48011383225 + 36046060164 = 219115^2 + 189858^2 .

It is a cyclic number.

It is not a de Polignac number, because 84057443389 - 2¹³ = 84057435197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84057443383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42028721694 + 42028721695.

It is an arithmetic number, because the mean of its divisors is an integer number (42028721695).

Almost surely, 2^84057443389 is an apocalyptic number.

It is an amenable number.

84057443389 is a deficient number, since it is larger than the sum of its proper divisors (1).

84057443389 is an equidigital number, since it uses as much as digits as its factorization.

84057443389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 84057443389 in words is "eighty-four billion, fifty-seven million, four hundred forty-three thousand, three hundred eighty-nine".