2912717817 has 6 divisors (see below), whose sum is σ = 4207259082. Its totient is φ = 1941811872.

The previous prime is 2912717813. The next prime is 2912717837. The reversal of 2912717817 is 7187172192.

It can be written as a sum of positive squares in only one way, i.e., 2092239081 + 820478736 = 45741^2 + 28644^2 .

It is not a de Polignac number, because 2912717817 - 2² = 2912717813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2912717813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161817648 + ... + 161817665.

It is an arithmetic number, because the mean of its divisors is an integer number (701209847).

Almost surely, 2^2912717817 is an apocalyptic number.

It is an amenable number.

2912717817 is a deficient number, since it is larger than the sum of its proper divisors (1294541265).

2912717817 is a wasteful number, since it uses less digits than its factorization.

2912717817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323635319 (or 323635316 counting only the distinct ones).

The product of its digits is 98784, while the sum is 45.

The square root of 2912717817 is about 53969.6008601138. The cubic root of 2912717817 is about 1428.1247228233.

The spelling of 2912717817 in words is "two billion, nine hundred twelve million, seven hundred seventeen thousand, eight hundred seventeen".