8781392416 has 48 divisors (see below), whose sum is σ = 17493192864. Its totient is φ = 4338883584.

The previous prime is 8781392407. The next prime is 8781392419. The reversal of 8781392416 is 6142931878.

It is a super-2 number, since 2×8781392416² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8781392416.

It is not an unprimeable number, because it can be changed into a prime (8781392419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479631 + ... + 1485553.

It is an arithmetic number, because the mean of its divisors is an integer number (364441518).

Almost surely, 2^8781392416 is an apocalyptic number.

It is an amenable number.

8781392416 is a deficient number, since it is larger than the sum of its proper divisors (8711800448).

8781392416 is a wasteful number, since it uses less digits than its factorization.

8781392416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473 (or 6465 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 8781392416 is about 93709.0839566795. The cubic root of 8781392416 is about 2063.1040344368.

The spelling of 8781392416 in words is "eight billion, seven hundred eighty-one million, three hundred ninety-two thousand, four hundred sixteen".