10915128173 has 2 divisors, whose sum is σ = 10915128174. Its totient is φ = 10915128172.

The previous prime is 10915128163. The next prime is 10915128197. The reversal of 10915128173 is 37182151901.

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., 8873263204 + 2041864969 = 94198^2 + 45187^2 .

It is a cyclic number.

It is not a de Polignac number, because 10915128173 - 2¹⁰ = 10915127149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10915128163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457564086 + 5457564087.

It is an arithmetic number, because the mean of its divisors is an integer number (5457564087).

Almost surely, 2^10915128173 is an apocalyptic number.

It is an amenable number.

10915128173 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915128173 is an equidigital number, since it uses as much as digits as its factorization.

10915128173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 38.

The spelling of 10915128173 in words is "ten billion, nine hundred fifteen million, one hundred twenty-eight thousand, one hundred seventy-three".