9859885945 has 16 divisors (see below), whose sum is σ = 14562293760. Its totient is φ = 6240982464.

The previous prime is 9859885907. The next prime is 9859885951. The reversal of 9859885945 is 5495889589.

9859885945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9859885945 - 2¹⁵ = 9859853177 is a prime.

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, 10834585 + ... + 10835494.

It is an arithmetic number, because the mean of its divisors is an integer number (910143360).

Almost surely, 2^9859885945 is an apocalyptic number.

It is an amenable number.

9859885945 is a deficient number, since it is larger than the sum of its proper divisors (4702407815).

9859885945 is a wasteful number, since it uses less digits than its factorization.

9859885945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670104.

The product of its digits is 186624000, while the sum is 70.

The square root of 9859885945 is about 99296.9583874552. The cubic root of 9859885945 is about 2144.3251061291.

The spelling of 9859885945 in words is "nine billion, eight hundred fifty-nine million, eight hundred eighty-five thousand, nine hundred forty-five".