2173938719 has 2 divisors, whose sum is σ = 2173938720. Its totient is φ = 2173938718.

The previous prime is 2173938709. The next prime is 2173938727. The reversal of 2173938719 is 9178393712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2173938719 - 2⁸ = 2173938463 is a prime.

It is a super-2 number, since 2×2173938719² = 9452019107934721922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2173938709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086969359 + 1086969360.

It is an arithmetic number, because the mean of its divisors is an integer number (1086969360).

Almost surely, 2^2173938719 is an apocalyptic number.

2173938719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173938719 is an equidigital number, since it uses as much as digits as its factorization.

2173938719 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 2173938719 is about 46625.5157504987. The cubic root of 2173938719 is about 1295.4354153682.

The spelling of 2173938719 in words is "two billion, one hundred seventy-three million, nine hundred thirty-eight thousand, seven hundred nineteen".