171914377583783 has 2 divisors, whose sum is σ = 171914377583784. Its totient is φ = 171914377583782.

The previous prime is 171914377583713. The next prime is 171914377583801. The reversal of 171914377583783 is 387385773419171.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171914377583783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171914377583783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171914377583713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85957188791891 + 85957188791892.

It is an arithmetic number, because the mean of its divisors is an integer number (85957188791892).

Almost surely, 2^{171914377583783} is an apocalyptic number.

171914377583783 is a deficient number, since it is larger than the sum of its proper divisors (1).

171914377583783 is an equidigital number, since it uses as much as digits as its factorization.

171914377583783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746807040, while the sum is 74.

The spelling of 171914377583783 in words is "one hundred seventy-one trillion, nine hundred fourteen billion, three hundred seventy-seven million, five hundred eighty-three thousand, seven hundred eighty-three".