84000005505505 has 8 divisors (see below), whose sum is σ = 100835993773224. Its totient is φ = 67176012960000.

The previous prime is 84000005505491. The next prime is 84000005505509. The reversal of 84000005505505 is 50550550000048.

It can be written as a sum of positive squares in 4 ways, for example, as 10543586973921 + 73456418531584 = 3247089^2 + 8570672^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84000005505505 - 2²¹ = 84000003408353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84000005505509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2998915146 + ... + 2998943155.

It is an arithmetic number, because the mean of its divisors is an integer number (12604499221653).

Almost surely, 2^{84000005505505} is an apocalyptic number.

It is an amenable number.

84000005505505 is a deficient number, since it is larger than the sum of its proper divisors (16835988267719).

84000005505505 is a wasteful number, since it uses less digits than its factorization.

84000005505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997861107.

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 84000005505505 in words is "eighty-four trillion, five million, five hundred five thousand, five hundred five".