8581716922 has 4 divisors (see below), whose sum is σ = 12872575386. Its totient is φ = 4290858460.

The previous prime is 8581716919. The next prime is 8581716971. The reversal of 8581716922 is 2296171858.

It is a happy number.

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., 8572722921 + 8994001 = 92589^2 + 2999^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2145429229 + ... + 2145429232.

Almost surely, 2^8581716922 is an apocalyptic number.

8581716922 is a deficient number, since it is larger than the sum of its proper divisors (4290858464).

8581716922 is a wasteful number, since it uses less digits than its factorization.

8581716922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290858463.

The product of its digits is 483840, while the sum is 49.

The square root of 8581716922 is about 92637.5567575052. The cubic root of 8581716922 is about 2047.3467098946.

The spelling of 8581716922 in words is "eight billion, five hundred eighty-one million, seven hundred sixteen thousand, nine hundred twenty-two".