9872622585 has 144 divisors (see below), whose sum is σ = 21859134336. Its totient is φ = 4023364608.

The previous prime is 9872622563. The next prime is 9872622611. The reversal of 9872622585 is 5852262789.

It is a happy number.

9872622585 is a `hidden beast` number, since 9 + 8 + 7 + 2 + 622 + 5 + 8 + 5 = 666.

9872622585 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 9872622585 - 2¹⁵ = 9872589817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1930602 + ... + 1935708.

It is an arithmetic number, because the mean of its divisors is an integer number (151799544).

Almost surely, 2^9872622585 is an apocalyptic number.

9872622585 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9872622585 is an abundant number, since it is smaller than the sum of its proper divisors (11986511751).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9872622585 is a wasteful number, since it uses less digits than its factorization.

9872622585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180 (or 5158 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 9872622585 is about 99361.0717786397. The cubic root of 9872622585 is about 2145.2480290887.

The spelling of 9872622585 in words is "nine billion, eight hundred seventy-two million, six hundred twenty-two thousand, five hundred eighty-five".