1085850268585 has 4 divisors (see below), whose sum is σ = 1303020322308. Its totient is φ = 868680214864.

The previous prime is 1085850268571. The next prime is 1085850268597. The reversal of 1085850268585 is 5858620585801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 492204674329 + 593645594256 = 701573^2 + 770484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085850268585 - 2¹⁵ = 1085850235817 is a prime.

It is a super-2 number, since 2×1085850268585² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108585026854 + ... + 108585026863.

It is an arithmetic number, because the mean of its divisors is an integer number (325755080577).

Almost surely, 2^{1085850268585} is an apocalyptic number.

It is an amenable number.

1085850268585 is a deficient number, since it is larger than the sum of its proper divisors (217170053723).

1085850268585 is an equidigital number, since it uses as much as digits as its factorization.

1085850268585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217170053722.

The product of its (nonzero) digits is 30720000, while the sum is 61.

The spelling of 1085850268585 in words is "one trillion, eighty-five billion, eight hundred fifty million, two hundred sixty-eight thousand, five hundred eighty-five".