1069985855 has 8 divisors (see below), whose sum is σ = 1351561200. Its totient is φ = 810936576.

The previous prime is 1069985843. The next prime is 1069985881. The reversal of 1069985855 is 5585899601.

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 1069985855 - 2²⁶ = 1002876991 is a prime.

It is a super-2 number, since 2×1069985855² = 2289739459800162050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1069985855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5631410 + ... + 5631599.

It is an arithmetic number, because the mean of its divisors is an integer number (168945150).

Almost surely, 2^1069985855 is an apocalyptic number.

1069985855 is a deficient number, since it is larger than the sum of its proper divisors (281575345).

1069985855 is a wasteful number, since it uses less digits than its factorization.

1069985855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11263033.

The product of its (nonzero) digits is 3888000, while the sum is 56.

The square root of 1069985855 is about 32710.6382542438. The cubic root of 1069985855 is about 1022.8046146984.

The spelling of 1069985855 in words is "one billion, sixty-nine million, nine hundred eighty-five thousand, eight hundred fifty-five".