8197717632 has 128 divisors (see below), whose sum is σ = 24084533760. Its totient is φ = 2454147072.

The previous prime is 8197717613. The next prime is 8197717657. The reversal of 8197717632 is 2367177918.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 162513 + ... + 206895.

It is an arithmetic number, because the mean of its divisors is an integer number (188160420).

Almost surely, 2^8197717632 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 8197717632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12042266880).

8197717632 is an abundant number, since it is smaller than the sum of its proper divisors (15886816128).

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

8197717632 is a wasteful number, since it uses less digits than its factorization.

8197717632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44450 (or 44438 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The square root of 8197717632 is about 90541.2482352657. The cubic root of 8197717632 is about 2016.3425658734.

The spelling of 8197717632 in words is "eight billion, one hundred ninety-seven million, seven hundred seventeen thousand, six hundred thirty-two".