8888621881 has 4 divisors (see below), whose sum is σ = 8889582592. Its totient is φ = 8887661172.

The previous prime is 8888621873. The next prime is 8888621897. The reversal of 8888621881 is 1881268888.

8888621881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8888621881 - 2³ = 8888621873 is a prime.

It is a super-2 number, since 2×8888621881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8888621981) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 466341 + ... + 485026.

It is an arithmetic number, because the mean of its divisors is an integer number (2222395648).

Almost surely, 2^8888621881 is an apocalyptic number.

It is an amenable number.

8888621881 is a deficient number, since it is larger than the sum of its proper divisors (960711).

8888621881 is an equidigital number, since it uses as much as digits as its factorization.

8888621881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960710.

The product of its digits is 3145728, while the sum is 58.

The square root of 8888621881 is about 94279.4881244059. The cubic root of 8888621881 is about 2071.4675957051.

The spelling of 8888621881 in words is "eight billion, eight hundred eighty-eight million, six hundred twenty-one thousand, eight hundred eighty-one".