918935900685 has 48 divisors (see below), whose sum is σ = 1737784938240. Its totient is φ = 445503477120.

The previous prime is 918935900647. The next prime is 918935900719. The reversal of 918935900685 is 586009539819.

918935900685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 918935900685 - 2¹⁸ = 918935638541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5660476 + ... + 5820554.

It is an arithmetic number, because the mean of its divisors is an integer number (36203852880).

Almost surely, 2^918935900685 is an apocalyptic number.

It is an amenable number.

918935900685 is a deficient number, since it is larger than the sum of its proper divisors (818849037555).

918935900685 is a wasteful number, since it uses less digits than its factorization.

918935900685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171698 (or 171695 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 918935900685 in words is "nine hundred eighteen billion, nine hundred thirty-five million, nine hundred thousand, six hundred eighty-five".