84866908149 has 12 divisors (see below), whose sum is σ = 125575425612. Its totient is φ = 55197988800.

The previous prime is 84866908123. The next prime is 84866908187. The reversal of 84866908149 is 94180966848.

84866908149 is a `hidden beast` number, since 8 + 486 + 6 + 9 + 0 + 8 + 149 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4196707524 + 80670200625 = 64782^2 + 284025^2 .

It is not a de Polignac number, because 84866908149 - 2¹¹ = 84866906101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84866908109) 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 11 ways as a sum of consecutive naturals, for example, 114995442 + ... + 114996179.

It is an arithmetic number, because the mean of its divisors is an integer number (10464618801).

Almost surely, 2^84866908149 is an apocalyptic number.

It is an amenable number.

84866908149 is a deficient number, since it is larger than the sum of its proper divisors (40708517463).

84866908149 is a wasteful number, since it uses less digits than its factorization.

84866908149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229991668 (or 229991665 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 84866908149 in words is "eighty-four billion, eight hundred sixty-six million, nine hundred eight thousand, one hundred forty-nine".