84404080403999 has 4 divisors (see below), whose sum is σ = 84404512428864. Its totient is φ = 84403648379136.

The previous prime is 84404080403971. The next prime is 84404080404019. The reversal of 84404080403999 is 99930408040448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84404080403999 - 2⁴⁰ = 83304568776223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84404080403969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215719247 + ... + 216110160.

It is an arithmetic number, because the mean of its divisors is an integer number (21101128107216).

Almost surely, 2^{84404080403999} is an apocalyptic number.

84404080403999 is a deficient number, since it is larger than the sum of its proper divisors (432024865).

84404080403999 is a wasteful number, since it uses less digits than its factorization.

84404080403999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432024864.

The product of its (nonzero) digits is 35831808, while the sum is 62.

The spelling of 84404080403999 in words is "eighty-four trillion, four hundred four billion, eighty million, four hundred three thousand, nine hundred ninety-nine".