8775621120 has 320 divisors, whose sum is σ = 32243650560. Its totient is φ = 1994539008.

The previous prime is 8775621091. The next prime is 8775621161. The reversal of 8775621120 is 211265778.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12848299 + ... + 12848981.

It is an arithmetic number, because the mean of its divisors is an integer number (100761408).

Almost surely, 2^8775621120 is an apocalyptic number.

8775621120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8775621120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16121825280).

8775621120 is an abundant number, since it is smaller than the sum of its proper divisors (23468029440).

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

8775621120 is a wasteful number, since it uses less digits than its factorization.

8775621120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 8775621120 is about 93678.2852106079. The cubic root of 8775621120 is about 2062.6519651482.

Adding to 8775621120 its reverse (211265778), we get a palindrome (8986886898).

The spelling of 8775621120 in words is "eight billion, seven hundred seventy-five million, six hundred twenty-one thousand, one hundred twenty".