8781847972 has 12 divisors (see below), whose sum is σ = 15460260480. Its totient is φ = 4364630696.

The previous prime is 8781847871. The next prime is 8781848027. The reversal of 8781847972 is 2797481878.

It is a self number, because there is not a number n which added to its sum of digits gives 8781847972.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6572572 + ... + 6573907.

It is an arithmetic number, because the mean of its divisors is an integer number (1288355040).

Almost surely, 2^8781847972 is an apocalyptic number.

It is an amenable number.

8781847972 is a deficient number, since it is larger than the sum of its proper divisors (6678412508).

8781847972 is a wasteful number, since it uses less digits than its factorization.

8781847972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13146650 (or 13146648 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 61.

The square root of 8781847972 is about 93711.5146180020. The cubic root of 8781847972 is about 2063.1397099928.

The spelling of 8781847972 in words is "eight billion, seven hundred eighty-one million, eight hundred forty-seven thousand, nine hundred seventy-two".