84415785084 has 36 divisors (see below), whose sum is σ = 214057511304. Its totient is φ = 28049825952.

The previous prime is 84415785079. The next prime is 84415785107. The reversal of 84415785084 is 48058751448.

84415785084 is a `hidden beast` number, since 8 + 441 + 5 + 78 + 50 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 84415785084.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3687142 + ... + 3709965.

Almost surely, 2^84415785084 is an apocalyptic number.

It is an amenable number.

84415785084 is an abundant number, since it is smaller than the sum of its proper divisors (129641726220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84415785084 is a wasteful number, since it uses less digits than its factorization.

84415785084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7397434 (or 7397429 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 54.

The spelling of 84415785084 in words is "eighty-four billion, four hundred fifteen million, seven hundred eighty-five thousand, eighty-four".