8968791447 has 64 divisors (see below), whose sum is σ = 16687180800. Its totient is φ = 4624957440.

The previous prime is 8968791431. The next prime is 8968791457. The reversal of 8968791447 is 7441978698.

8968791447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8968791447 - 2⁴ = 8968791431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8968791427) 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 63 ways as a sum of consecutive naturals, for example, 269079 + ... + 300567.

It is an arithmetic number, because the mean of its divisors is an integer number (260737200).

Almost surely, 2^8968791447 is an apocalyptic number.

8968791447 is a deficient number, since it is larger than the sum of its proper divisors (7718389353).

8968791447 is a wasteful number, since it uses less digits than its factorization.

8968791447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31653 (or 31647 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 8968791447 is about 94703.7034492316. The cubic root of 8968791447 is about 2077.6767272667.

The spelling of 8968791447 in words is "eight billion, nine hundred sixty-eight million, seven hundred ninety-one thousand, four hundred forty-seven".