84131985055 has 8 divisors (see below), whose sum is σ = 101635956000. Its totient is φ = 66853872096.

The previous prime is 84131985037. The next prime is 84131985059. The reversal of 84131985055 is 55058913148.

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

It is a cyclic number.

It is not a de Polignac number, because 84131985055 - 2¹⁹ = 84131460767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84131985059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56463675 + ... + 56465164.

It is an arithmetic number, because the mean of its divisors is an integer number (12704494500).

Almost surely, 2^84131985055 is an apocalyptic number.

84131985055 is a deficient number, since it is larger than the sum of its proper divisors (17503970945).

84131985055 is a wasteful number, since it uses less digits than its factorization.

84131985055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112928993.

The product of its (nonzero) digits is 864000, while the sum is 49.

The spelling of 84131985055 in words is "eighty-four billion, one hundred thirty-one million, nine hundred eighty-five thousand, fifty-five".