1085717618 has 16 divisors (see below), whose sum is σ = 1636551384. Its totient is φ = 540207360.

The previous prime is 1085717617. The next prime is 1085717663. The reversal of 1085717618 is 8167175801.

It can be written as a sum of positive squares in 4 ways, for example, as 1078005889 + 7711729 = 32833^2 + 2777^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1085717617) 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, 444296 + ... + 446732.

Almost surely, 2^1085717618 is an apocalyptic number.

1085717618 is a deficient number, since it is larger than the sum of its proper divisors (550833766).

1085717618 is a wasteful number, since it uses less digits than its factorization.

1085717618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437.

The product of its (nonzero) digits is 94080, while the sum is 44.

The square root of 1085717618 is about 32950.2294073956. The cubic root of 1085717618 is about 1027.7929358572.

The spelling of 1085717618 in words is "one billion, eighty-five million, seven hundred seventeen thousand, six hundred eighteen".