210085747907 has 24 divisors (see below), whose sum is σ = 258979201776. Its totient is φ = 169338075648.

The previous prime is 210085747903. The next prime is 210085747909. The reversal of 210085747907 is 709747580012.

It is a happy number.

It is not a de Polignac number, because 210085747907 - 2² = 210085747903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210085747903) 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 23 ways as a sum of consecutive naturals, for example, 888068 + ... + 1099470.

It is an arithmetic number, because the mean of its divisors is an integer number (10790800074).

Almost surely, 2^210085747907 is an apocalyptic number.

210085747907 is a deficient number, since it is larger than the sum of its proper divisors (48893453869).

210085747907 is a wasteful number, since it uses less digits than its factorization.

210085747907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212627 (or 212620 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 210085747907 in words is "two hundred ten billion, eighty-five million, seven hundred forty-seven thousand, nine hundred seven".