985255784599 has 8 divisors (see below), whose sum is σ = 985771265472. Its totient is φ = 984740390400.

The previous prime is 985255784593. The next prime is 985255784663. The reversal of 985255784599 is 995487552589.

985255784599 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 985255784599 - 2⁹ = 985255784087 is a prime.

It is a super-2 number, since 2×985255784599² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985255784593) 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, 45958387 + ... + 45979819.

It is an arithmetic number, because the mean of its divisors is an integer number (123221408184).

Almost surely, 2^985255784599 is an apocalyptic number.

985255784599 is a deficient number, since it is larger than the sum of its proper divisors (515480873).

985255784599 is a wasteful number, since it uses less digits than its factorization.

985255784599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43337.

The product of its digits is 1632960000, while the sum is 76.

The spelling of 985255784599 in words is "nine hundred eighty-five billion, two hundred fifty-five million, seven hundred eighty-four thousand, five hundred ninety-nine".