36831785085 has 12 divisors (see below), whose sum is σ = 63841760892. Its totient is φ = 19643618688.

The previous prime is 36831785077. The next prime is 36831785099. The reversal of 36831785085 is 58058713863.

36831785085 is a `hidden beast` number, since 3 + 68 + 3 + 1 + 78 + 508 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4017911769 + 32813873316 = 63387^2 + 181146^2 .

It is not a de Polignac number, because 36831785085 - 2³ = 36831785077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409242012 + ... + 409242101.

It is an arithmetic number, because the mean of its divisors is an integer number (5320146741).

Almost surely, 2^36831785085 is an apocalyptic number.

It is an amenable number.

36831785085 is a deficient number, since it is larger than the sum of its proper divisors (27009975807).

36831785085 is a wasteful number, since it uses less digits than its factorization.

36831785085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818484124 (or 818484121 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 36831785085 in words is "thirty-six billion, eight hundred thirty-one million, seven hundred eighty-five thousand, eighty-five".