817271004769 has 8 divisors (see below), whose sum is σ = 843977744640. Its totient is φ = 790585712400.

The previous prime is 817271004749. The next prime is 817271004817. The reversal of 817271004769 is 967400172718.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-817271004769 is a prime.

It is a super-2 number, since 2×817271004769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (817271004709) 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, 5284402 + ... + 5436859.

It is an arithmetic number, because the mean of its divisors is an integer number (105497218080).

Almost surely, 2^817271004769 is an apocalyptic number.

It is an amenable number.

817271004769 is a deficient number, since it is larger than the sum of its proper divisors (26706739871).

817271004769 is a wasteful number, since it uses less digits than its factorization.

817271004769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723751.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 817271004769 in words is "eight hundred seventeen billion, two hundred seventy-one million, four thousand, seven hundred sixty-nine".