10173440659409 has 2 divisors, whose sum is σ = 10173440659410. Its totient is φ = 10173440659408.

The previous prime is 10173440659391. The next prime is 10173440659441. The reversal of 10173440659409 is 90495604437101.

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., 8645052421009 + 1528388238400 = 2940247^2 + 1236280^2 .

It is a cyclic number.

It is not a de Polignac number, because 10173440659409 - 2¹⁶ = 10173440593873 is a prime.

It is not a weakly prime, because it can be changed into another prime (10173440659489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086720329704 + 5086720329705.

It is an arithmetic number, because the mean of its divisors is an integer number (5086720329705).

Almost surely, 2^{10173440659409} is an apocalyptic number.

It is an amenable number.

10173440659409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10173440659409 is an equidigital number, since it uses as much as digits as its factorization.

10173440659409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 10173440659409 in words is "ten trillion, one hundred seventy-three billion, four hundred forty million, six hundred fifty-nine thousand, four hundred nine".