918611068885 has 16 divisors (see below), whose sum is σ = 1117255867056. Its totient is φ = 724988878848.

The previous prime is 918611068871. The next prime is 918611068889. The reversal of 918611068885 is 588860116819.

It can be written as a sum of positive squares in 8 ways, for example, as 11686258609 + 906924810276 = 108103^2 + 952326^2 .

It is a cyclic number.

It is not a de Polignac number, because 918611068885 - 2¹⁷ = 918610937813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918611068889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2873824 + ... + 3177433.

It is an arithmetic number, because the mean of its divisors is an integer number (69828491691).

Almost surely, 2^918611068885 is an apocalyptic number.

It is an amenable number.

918611068885 is a deficient number, since it is larger than the sum of its proper divisors (198644798171).

918611068885 is a wasteful number, since it uses less digits than its factorization.

918611068885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051672.

The product of its (nonzero) digits is 6635520, while the sum is 61.

The spelling of 918611068885 in words is "nine hundred eighteen billion, six hundred eleven million, sixty-eight thousand, eight hundred eighty-five".