9459890988 has 12 divisors (see below), whose sum is σ = 22073079000. Its totient is φ = 3153296992.

The previous prime is 9459890969. The next prime is 9459891011. The reversal of 9459890988 is 8890989549.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9459890988² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394162113 + ... + 394162136.

It is an arithmetic number, because the mean of its divisors is an integer number (1839423250).

Almost surely, 2^9459890988 is an apocalyptic number.

It is an amenable number.

9459890988 is an abundant number, since it is smaller than the sum of its proper divisors (12613188012).

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

9459890988 is a wasteful number, since it uses less digits than its factorization.

9459890988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788324256 (or 788324254 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 69.

The square root of 9459890988 is about 97261.9709238919. The cubic root of 9459890988 is about 2114.9269787956.

The spelling of 9459890988 in words is "nine billion, four hundred fifty-nine million, eight hundred ninety thousand, nine hundred eighty-eight".