2129488717 has 2 divisors, whose sum is σ = 2129488718. Its totient is φ = 2129488716.

The previous prime is 2129488703. The next prime is 2129488733. The reversal of 2129488717 is 7178849212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2128345956 + 1142761 = 46134^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129488717 - 2¹⁹ = 2128964429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129488817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064744358 + 1064744359.

It is an arithmetic number, because the mean of its divisors is an integer number (1064744359).

Almost surely, 2^2129488717 is an apocalyptic number.

It is an amenable number.

2129488717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129488717 is an equidigital number, since it uses as much as digits as its factorization.

2129488717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 49.

The square root of 2129488717 is about 46146.3835744471. The cubic root of 2129488717 is about 1286.5453944050.

It can be divided in two parts, 21294 and 88717, that added together give a palindrome (110011).

The spelling of 2129488717 in words is "two billion, one hundred twenty-nine million, four hundred eighty-eight thousand, seven hundred seventeen".