2085789636 has 96 divisors (see below), whose sum is σ = 6543694080. Its totient is φ = 560881152.

The previous prime is 2085789631. The next prime is 2085789637. The reversal of 2085789636 is 6369875802.

It is a happy number.

2085789636 is a `hidden beast` number, since 2 + 0 + 8 + 578 + 9 + 63 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2085789631) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 68295 + ... + 93998.

It is an arithmetic number, because the mean of its divisors is an integer number (68163480).

Almost surely, 2^2085789636 is an apocalyptic number.

It is an amenable number.

2085789636 is an abundant number, since it is smaller than the sum of its proper divisors (4457904444).

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

2085789636 is a wasteful number, since it uses less digits than its factorization.

2085789636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162330 (or 162322 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 2085789636 is about 45670.4459798675. The cubic root of 2085789636 is about 1277.6841336243.

The spelling of 2085789636 in words is "two billion, eighty-five million, seven hundred eighty-nine thousand, six hundred thirty-six".