8809211913 has 4 divisors (see below), whose sum is σ = 11745615888. Its totient is φ = 5872807940.

The previous prime is 8809211903. The next prime is 8809211953. The reversal of 8809211913 is 3191129088.

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 8809211913 - 2⁹ = 8809211401 is a prime.

It is a super-2 number, since 2×8809211913² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8809211903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1468201983 + ... + 1468201988.

It is an arithmetic number, because the mean of its divisors is an integer number (2936403972).

Almost surely, 2^8809211913 is an apocalyptic number.

It is an amenable number.

8809211913 is a deficient number, since it is larger than the sum of its proper divisors (2936403975).

8809211913 is a wasteful number, since it uses less digits than its factorization.

8809211913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936403974.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 8809211913 is about 93857.4020149716. The cubic root of 8809211913 is about 2065.2803792775.

The spelling of 8809211913 in words is "eight billion, eight hundred nine million, two hundred eleven thousand, nine hundred thirteen".