84080399999 has 2 divisors, whose sum is σ = 84080400000. Its totient is φ = 84080399998.

The previous prime is 84080399957. The next prime is 84080400023. The reversal of 84080399999 is 99999308048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84080399999 - 2²⁰ = 84079351423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84080399929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42040199999 + 42040200000.

It is an arithmetic number, because the mean of its divisors is an integer number (42040200000).

Almost surely, 2^84080399999 is an apocalyptic number.

84080399999 is a deficient number, since it is larger than the sum of its proper divisors (1).

84080399999 is an equidigital number, since it uses as much as digits as its factorization.

84080399999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45349632, while the sum is 68.

The spelling of 84080399999 in words is "eighty-four billion, eighty million, three hundred ninety-nine thousand, nine hundred ninety-nine".