4455668988 has 36 divisors (see below), whose sum is σ = 11266655400. Its totient is φ = 1484733216.

The previous prime is 4455668983. The next prime is 4455668989. The reversal of 4455668988 is 8898665544.

4455668988 is a `hidden beast` number, since 445 + 56 + 68 + 9 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4455668988² = 39705972261249888288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455668983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100006 + ... + 137522.

It is an arithmetic number, because the mean of its divisors is an integer number (312962650).

Almost surely, 2^4455668988 is an apocalyptic number.

It is an amenable number.

4455668988 is an abundant number, since it is smaller than the sum of its proper divisors (6810986412).

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

4455668988 is a wasteful number, since it uses less digits than its factorization.

4455668988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40826 (or 40821 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The square root of 4455668988 is about 66750.7976581554. The cubic root of 4455668988 is about 1645.5243245651.

The spelling of 4455668988 in words is "four billion, four hundred fifty-five million, six hundred sixty-eight thousand, nine hundred eighty-eight".