8561873940624 has 45 divisors (see below), whose sum is σ = 23961453809683. Its totient is φ = 2853946275936.

The previous prime is 8561873940619. The next prime is 8561873940637. The reversal of 8561873940624 is 4260493781658.

The square root of 8561873940624 is 2926068.

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

8561873940624 is a `hidden beast` number, since 8 + 5 + 6 + 187 + 394 + 0 + 62 + 4 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34990897 + ... + 35234735.

It is a 1-persistent number, because it is pandigital, but 2⋅8561873940624 = 17123747881248 is not.

Almost surely, 2^{8561873940624} is an apocalyptic number.

8561873940624 is the 2926068-th square number.

It is an amenable number.

8561873940624 is an abundant number, since it is smaller than the sum of its proper divisors (15399579869059).

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

8561873940624 is an frugal number, since it uses more digits than its factorization.

8561873940624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487692 (or 243844 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 8561873940624 in words is "eight trillion, five hundred sixty-one billion, eight hundred seventy-three million, nine hundred forty thousand, six hundred twenty-four".