8561222434 has 4 divisors (see below), whose sum is σ = 12841833654. Its totient is φ = 4280611216.

The previous prime is 8561222419. The next prime is 8561222437. The reversal of 8561222434 is 4342221658.

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

It can be written as a sum of positive squares in only one way, i.e., 7882776225 + 678446209 = 88785^2 + 26047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8561222393 and 8561222402.

It is not an unprimeable number, because it can be changed into a prime (8561222437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2140305607 + ... + 2140305610.

Almost surely, 2^8561222434 is an apocalyptic number.

8561222434 is a deficient number, since it is larger than the sum of its proper divisors (4280611220).

8561222434 is a wasteful number, since it uses less digits than its factorization.

8561222434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280611219.

The product of its digits is 92160, while the sum is 37.

The square root of 8561222434 is about 92526.8741177394. The cubic root of 8561222434 is about 2045.7156155902.

The spelling of 8561222434 in words is "eight billion, five hundred sixty-one million, two hundred twenty-two thousand, four hundred thirty-four".