8899123081 has 4 divisors (see below), whose sum is σ = 9367498000. Its totient is φ = 8430748164.

The previous prime is 8899123067. The next prime is 8899123151. The reversal of 8899123081 is 1803219988.

8899123081 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 8899123081 - 2⁵ = 8899123049 is a prime.

It is a super-2 number, since 2×8899123081² (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 (8899123001) 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, 234187431 + ... + 234187468.

It is an arithmetic number, because the mean of its divisors is an integer number (2341874500).

Almost surely, 2^8899123081 is an apocalyptic number.

It is an amenable number.

8899123081 is a deficient number, since it is larger than the sum of its proper divisors (468374919).

8899123081 is a wasteful number, since it uses less digits than its factorization.

8899123081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468374918.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 8899123081 is about 94335.1635446719. The cubic root of 8899123081 is about 2072.2830327506.

The spelling of 8899123081 in words is "eight billion, eight hundred ninety-nine million, one hundred twenty-three thousand, eighty-one".