2102394004717 has 2 divisors, whose sum is σ = 2102394004718. Its totient is φ = 2102394004716.

The previous prime is 2102394004679. The next prime is 2102394004721. The reversal of 2102394004717 is 7174004932012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2074576434921 + 27817569796 = 1440339^2 + 166786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102394004717 - 2²⁷ = 2102259786989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102394004717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102394004787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051197002358 + 1051197002359.

It is an arithmetic number, because the mean of its divisors is an integer number (1051197002359).

Almost surely, 2^{2102394004717} is an apocalyptic number.

It is an amenable number.

2102394004717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102394004717 is an equidigital number, since it uses as much as digits as its factorization.

2102394004717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

Adding to 2102394004717 its reverse (7174004932012), we get a palindrome (9276398936729).

The spelling of 2102394004717 in words is "two trillion, one hundred two billion, three hundred ninety-four million, four thousand, seven hundred seventeen".