817472787082 has 32 divisors (see below), whose sum is σ = 1420382396160. Its totient is φ = 345618593280.

The previous prime is 817472787077. The next prime is 817472787083. The reversal of 817472787082 is 280787274718.

817472787082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×817472787082² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 817472787082.

It is not an unprimeable number, because it can be changed into a prime (817472787083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545457 + ... + 1390132.

It is an arithmetic number, because the mean of its divisors is an integer number (44386949880).

Almost surely, 2^817472787082 is an apocalyptic number.

817472787082 is a deficient number, since it is larger than the sum of its proper divisors (602909609078).

817472787082 is a wasteful number, since it uses less digits than its factorization.

817472787082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936006.

The product of its (nonzero) digits is 19668992, while the sum is 61.

The spelling of 817472787082 in words is "eight hundred seventeen billion, four hundred seventy-two million, seven hundred eighty-seven thousand, eighty-two".