8781938944 has 27 divisors (see below), whose sum is σ = 17532566877. Its totient is φ = 4390219776.

The previous prime is 8781938927. The next prime is 8781938983. The reversal of 8781938944 is 4498391878.

The square root of 8781938944 is 93712.

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

It can be written as a sum of positive squares in only one way, i.e., 8302854400 + 479084544 = 91120^2 + 21888^2 .

It is a super-2 number, since 2×8781938944² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1496464 + ... + 1502320.

Almost surely, 2^8781938944 is an apocalyptic number.

8781938944 is the 93712-nd square number.

It is an amenable number.

8781938944 is a deficient number, since it is larger than the sum of its proper divisors (8750627933).

8781938944 is an frugal number, since it uses more digits than its factorization.

8781938944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730 (or 5859 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 61.

The cubic root of 8781938944 is about 2063.1468340551.

The spelling of 8781938944 in words is "eight billion, seven hundred eighty-one million, nine hundred thirty-eight thousand, nine hundred forty-four".