84321024959 has 2 divisors, whose sum is σ = 84321024960. Its totient is φ = 84321024958.

The previous prime is 84321024943. The next prime is 84321024961. The reversal of 84321024959 is 95942012348.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84321024959 - 2⁴ = 84321024943 is a prime.

It is a super-2 number, since 2×84321024959² (a number of 23 digits) contains 22 as substring.

Together with 84321024961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84321024919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42160512479 + 42160512480.

It is an arithmetic number, because the mean of its divisors is an integer number (42160512480).

Almost surely, 2^84321024959 is an apocalyptic number.

84321024959 is a deficient number, since it is larger than the sum of its proper divisors (1).

84321024959 is an equidigital number, since it uses as much as digits as its factorization.

84321024959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 84321024959 in words is "eighty-four billion, three hundred twenty-one million, twenty-four thousand, nine hundred fifty-nine".