2171296679 has 2 divisors, whose sum is σ = 2171296680. Its totient is φ = 2171296678.

The previous prime is 2171296657. The next prime is 2171296681. The reversal of 2171296679 is 9766921712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2171296679 - 2²⁰ = 2170248103 is a prime.

Together with 2171296681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2171236679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085648339 + 1085648340.

It is an arithmetic number, because the mean of its divisors is an integer number (1085648340).

Almost surely, 2^2171296679 is an apocalyptic number.

2171296679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171296679 is an equidigital number, since it uses as much as digits as its factorization.

2171296679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 50.

The square root of 2171296679 is about 46597.1745817276. The cubic root of 2171296679 is about 1294.9104113573.

The spelling of 2171296679 in words is "two billion, one hundred seventy-one million, two hundred ninety-six thousand, six hundred seventy-nine".