17950064644319 has 2 divisors, whose sum is σ = 17950064644320. Its totient is φ = 17950064644318.

The previous prime is 17950064644301. The next prime is 17950064644321. The reversal of 17950064644319 is 91344646005971.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17950064644319 is a prime.

It is a super-2 number, since 2×17950064644319² (a number of 27 digits) contains 22 as substring.

Together with 17950064644321, 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 (17950064644399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8975032322159 + 8975032322160.

It is an arithmetic number, because the mean of its divisors is an integer number (8975032322160).

Almost surely, 2^{17950064644319} is an apocalyptic number.

17950064644319 is a deficient number, since it is larger than the sum of its proper divisors (1).

17950064644319 is an equidigital number, since it uses as much as digits as its factorization.

17950064644319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 17950064644319 in words is "seventeen trillion, nine hundred fifty billion, sixty-four million, six hundred forty-four thousand, three hundred nineteen".