8574842644 has 24 divisors (see below), whose sum is σ = 15268165920. Its totient is φ = 4212584544.

The previous prime is 8574842579. The next prime is 8574842677. The reversal of 8574842644 is 4462484758.

It is a junction number, because it is equal to n+sod(n) for n = 8574842591 and 8574842600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511662 + ... + 528154.

It is an arithmetic number, because the mean of its divisors is an integer number (636173580).

Almost surely, 2^8574842644 is an apocalyptic number.

It is an amenable number.

8574842644 is a deficient number, since it is larger than the sum of its proper divisors (6693323276).

8574842644 is a wasteful number, since it uses less digits than its factorization.

8574842644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759 (or 18757 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 52.

The square root of 8574842644 is about 92600.4462408254. The cubic root of 8574842644 is about 2046.7998966252.

The spelling of 8574842644 in words is "eight billion, five hundred seventy-four million, eight hundred forty-two thousand, six hundred forty-four".