9518989885 has 8 divisors (see below), whose sum is σ = 11701392696. Its totient is φ = 7429455360.

The previous prime is 9518989867. The next prime is 9518989891. The reversal of 9518989885 is 5889898159.

It can be written as a sum of positive squares in 4 ways, for example, as 1020546916 + 8498442969 = 31946^2 + 92187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9518989885 - 2⁷ = 9518989757 is a prime.

It is a super-2 number, since 2×9518989885² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 23216844 + ... + 23217253.

It is an arithmetic number, because the mean of its divisors is an integer number (1462674087).

Almost surely, 2^9518989885 is an apocalyptic number.

It is an amenable number.

9518989885 is a deficient number, since it is larger than the sum of its proper divisors (2182402811).

9518989885 is a wasteful number, since it uses less digits than its factorization.

9518989885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46434143.

The product of its digits is 74649600, while the sum is 70.

The square root of 9518989885 is about 97565.3108691814. The cubic root of 9518989885 is about 2119.3220424000.

The spelling of 9518989885 in words is "nine billion, five hundred eighteen million, nine hundred eighty-nine thousand, eight hundred eighty-five".