8494571556 has 27 divisors (see below), whose sum is σ = 21473787153. Its totient is φ = 2831339520.

The previous prime is 8494571479. The next prime is 8494571557. The reversal of 8494571556 is 6551754948.

It is a happy number.

The square root of 8494571556 is 92166.

It is a perfect power (a square), and thus also a powerful number.

8494571556 is a `hidden beast` number, since 8 + 49 + 45 + 7 + 1 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6501841956 + 1992729600 = 80634^2 + 44640^2 .

It is a super-2 number, since 2×8494571556² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8494571557) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 545316 + ... + 560676.

Almost surely, 2^8494571556 is an apocalyptic number.

8494571556 is the 92166-th square number.

It is an amenable number.

8494571556 is an abundant number, since it is smaller than the sum of its proper divisors (12979215597).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8494571556 is an equidigital number, since it uses as much as digits as its factorization.

8494571556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30732 (or 15366 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The cubic root of 8494571556 is about 2040.3930067505.

The spelling of 8494571556 in words is "eight billion, four hundred ninety-four million, five hundred seventy-one thousand, five hundred fifty-six".