84334126399 has 2 divisors, whose sum is σ = 84334126400. Its totient is φ = 84334126398.

The previous prime is 84334126339. The next prime is 84334126411. The reversal of 84334126399 is 99362143348.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84334126399 - 2⁷ = 84334126271 is a prime.

It is a super-2 number, since 2×84334126399² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84334126319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42167063199 + 42167063200.

It is an arithmetic number, because the mean of its divisors is an integer number (42167063200).

Almost surely, 2^84334126399 is an apocalyptic number.

84334126399 is a deficient number, since it is larger than the sum of its proper divisors (1).

84334126399 is an equidigital number, since it uses as much as digits as its factorization.

84334126399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 52.

The spelling of 84334126399 in words is "eighty-four billion, three hundred thirty-four million, one hundred twenty-six thousand, three hundred ninety-nine".