8668985538 has 16 divisors (see below), whose sum is σ = 17385217920. Its totient is φ = 2881787376.

The previous prime is 8668985527. The next prime is 8668985551. The reversal of 8668985538 is 8355898668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966233 + ... + 1970636.

It is an arithmetic number, because the mean of its divisors is an integer number (1086576120).

Almost surely, 2^8668985538 is an apocalyptic number.

8668985538 is an abundant number, since it is smaller than the sum of its proper divisors (8716232382).

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

8668985538 is a wasteful number, since it uses less digits than its factorization.

8668985538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937241.

The product of its digits is 99532800, while the sum is 66.

The square root of 8668985538 is about 93107.3871290565. The cubic root of 8668985538 is about 2054.2632308879.

The spelling of 8668985538 in words is "eight billion, six hundred sixty-eight million, nine hundred eighty-five thousand, five hundred thirty-eight".