26850116173 has 2 divisors, whose sum is σ = 26850116174. Its totient is φ = 26850116172.

The previous prime is 26850116159. The next prime is 26850116261. The reversal of 26850116173 is 37161105862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18062553609 + 8787562564 = 134397^2 + 93742^2 .

It is a cyclic number.

It is not a de Polignac number, because 26850116173 - 2⁵ = 26850116141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26850116473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13425058086 + 13425058087.

It is an arithmetic number, because the mean of its divisors is an integer number (13425058087).

Almost surely, 2^26850116173 is an apocalyptic number.

It is an amenable number.

26850116173 is a deficient number, since it is larger than the sum of its proper divisors (1).

26850116173 is an equidigital number, since it uses as much as digits as its factorization.

26850116173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 26850116173 in words is "twenty-six billion, eight hundred fifty million, one hundred sixteen thousand, one hundred seventy-three".