8491428748 has 24 divisors (see below), whose sum is σ = 16439238144. Its totient is φ = 3805376400.

The previous prime is 8491428733. The next prime is 8491428749. The reversal of 8491428748 is 8478241948.

It is not an unprimeable number, because it can be changed into a prime (8491428749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355940 + ... + 1362187.

It is an arithmetic number, because the mean of its divisors is an integer number (684968256).

Almost surely, 2^8491428748 is an apocalyptic number.

It is an amenable number.

8491428748 is a deficient number, since it is larger than the sum of its proper divisors (7947809396).

8491428748 is a wasteful number, since it uses less digits than its factorization.

8491428748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718213 (or 2718211 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 8491428748 is about 92148.9487080563. The cubic root of 8491428748 is about 2040.1413419306.

The spelling of 8491428748 in words is "eight billion, four hundred ninety-one million, four hundred twenty-eight thousand, seven hundred forty-eight".