9905860975 has 12 divisors (see below), whose sum is σ = 12285307936. Its totient is φ = 7923372480.

The previous prime is 9905860969. The next prime is 9905860997. The reversal of 9905860975 is 5790685099.

It is not a de Polignac number, because 9905860975 - 2²¹ = 9903763823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138019 + ... + 197131.

Almost surely, 2^9905860975 is an apocalyptic number.

9905860975 is a deficient number, since it is larger than the sum of its proper divisors (2379446961).

9905860975 is a wasteful number, since it uses less digits than its factorization.

9905860975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65826 (or 65821 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 58.

The square root of 9905860975 is about 99528.1918603970. The cubic root of 9905860975 is about 2147.6528179688.

The spelling of 9905860975 in words is "nine billion, nine hundred five million, eight hundred sixty thousand, nine hundred seventy-five".