8224154881 has 4 divisors (see below), whose sum is σ = 8232932932. Its totient is φ = 8215376832.

The previous prime is 8224154879. The next prime is 8224154891. The reversal of 8224154881 is 1884514228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3270810481 + 4953344400 = 57191^2 + 70380^2 .

It is a cyclic number.

It is not a de Polignac number, because 8224154881 - 2¹ = 8224154879 is a prime.

It is a super-2 number, since 2×8224154881² (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 (8224154801) 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, 4387620 + ... + 4389493.

It is an arithmetic number, because the mean of its divisors is an integer number (2058233233).

Almost surely, 2^8224154881 is an apocalyptic number.

It is an amenable number.

8224154881 is a deficient number, since it is larger than the sum of its proper divisors (8778051).

8224154881 is an equidigital number, since it uses as much as digits as its factorization.

8224154881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8778050.

The product of its digits is 163840, while the sum is 43.

The square root of 8224154881 is about 90687.1263245230. The cubic root of 8224154881 is about 2018.5077762252.

The spelling of 8224154881 in words is "eight billion, two hundred twenty-four million, one hundred fifty-four thousand, eight hundred eighty-one".