812717817003 has 32 divisors (see below), whose sum is σ = 1258778119680. Its totient is φ = 517263706080.

The previous prime is 812717816983. The next prime is 812717817017. The reversal of 812717817003 is 300718717218.

It is a happy number.

It is not a de Polignac number, because 812717817003 - 2³⁴ = 795537947819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 812717817003.

It is not an unprimeable number, because it can be changed into a prime (812717817203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 926388 + ... + 1575953.

It is an arithmetic number, because the mean of its divisors is an integer number (39336816240).

Almost surely, 2^812717817003 is an apocalyptic number.

812717817003 is a deficient number, since it is larger than the sum of its proper divisors (446060302677).

812717817003 is a wasteful number, since it uses less digits than its factorization.

812717817003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502896 (or 2502890 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The spelling of 812717817003 in words is "eight hundred twelve billion, seven hundred seventeen million, eight hundred seventeen thousand, three".