8447997247368 has 128 divisors (see below), whose sum is σ = 25439802086400. Its totient is φ = 2283769707264.

The previous prime is 8447997247307. The next prime is 8447997247369. The reversal of 8447997247368 is 8637427997448.

It is a junction number, because it is equal to n+sod(n) for n = 8447997247293 and 8447997247302.

It is not an unprimeable number, because it can be changed into a prime (8447997247369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830646 + ... + 4193562.

It is an arithmetic number, because the mean of its divisors is an integer number (198748453800).

Almost surely, 2^{8447997247368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8447997247368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12719901043200).

8447997247368 is an abundant number, since it is smaller than the sum of its proper divisors (16991804839032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8447997247368 is a wasteful number, since it uses less digits than its factorization.

8447997247368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363739 (or 3363735 counting only the distinct ones).

The product of its digits is 4096770048, while the sum is 78.

The spelling of 8447997247368 in words is "eight trillion, four hundred forty-seven billion, nine hundred ninety-seven million, two hundred forty-seven thousand, three hundred sixty-eight".