90682698785 has 16 divisors (see below), whose sum is σ = 125505811200. Its totient is φ = 61611938496.

The previous prime is 90682698779. The next prime is 90682698793. The reversal of 90682698785 is 58789628609.

It is a cyclic number.

It is not a de Polignac number, because 90682698785 - 2¹⁰ = 90682697761 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11881205 + ... + 11888834.

It is an arithmetic number, because the mean of its divisors is an integer number (7844113200).

Almost surely, 2^90682698785 is an apocalyptic number.

It is an amenable number.

90682698785 is a deficient number, since it is larger than the sum of its proper divisors (34823112415).

90682698785 is a wasteful number, since it uses less digits than its factorization.

90682698785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23770160.

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 90682698785 in words is "ninety billion, six hundred eighty-two million, six hundred ninety-eight thousand, seven hundred eighty-five".