17840965777379 has 2 divisors, whose sum is σ = 17840965777380. Its totient is φ = 17840965777378.

The previous prime is 17840965777321. The next prime is 17840965777403. The reversal of 17840965777379 is 97377756904871.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17840965777379 - 2⁴⁰ = 16741454149603 is a prime.

It is not a weakly prime, because it can be changed into another prime (17840965777319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8920482888689 + 8920482888690.

It is an arithmetic number, because the mean of its divisors is an integer number (8920482888690).

Almost surely, 2^{17840965777379} is an apocalyptic number.

17840965777379 is a deficient number, since it is larger than the sum of its proper divisors (1).

17840965777379 is an equidigital number, since it uses as much as digits as its factorization.

17840965777379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920736960, while the sum is 80.

The spelling of 17840965777379 in words is "seventeen trillion, eight hundred forty billion, nine hundred sixty-five million, seven hundred seventy-seven thousand, three hundred seventy-nine".