8382643172969 has 8 divisors (see below), whose sum is σ = 9027487130760. Its totient is φ = 7737802822656.

The previous prime is 8382643172933. The next prime is 8382643172971. The reversal of 8382643172969 is 9692713462838.

It can be written as a sum of positive squares in 4 ways, for example, as 790898955625 + 7591744217344 = 889325^2 + 2755312^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8382643172969 - 2²⁰ = 8382642124393 is a prime.

It is a super-2 number, since 2×8382643172969² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8382643172899 and 8382643172908.

It is not an unprimeable number, because it can be changed into a prime (8382643172929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731079 + ... + 7043475.

It is an arithmetic number, because the mean of its divisors is an integer number (1128435891345).

Almost surely, 2^{8382643172969} is an apocalyptic number.

It is an amenable number.

8382643172969 is a deficient number, since it is larger than the sum of its proper divisors (644843957791).

8382643172969 is a wasteful number, since it uses less digits than its factorization.

8382643172969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803739.

The product of its digits is 188116992, while the sum is 68.

The spelling of 8382643172969 in words is "eight trillion, three hundred eighty-two billion, six hundred forty-three million, one hundred seventy-two thousand, nine hundred sixty-nine".