17994744101 has 2 divisors, whose sum is σ = 17994744102. Its totient is φ = 17994744100.

The previous prime is 17994744073. The next prime is 17994744113. The reversal of 17994744101 is 10144749971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15277207201 + 2717536900 = 123601^2 + 52130^2 .

It is a cyclic number.

It is not a de Polignac number, because 17994744101 - 2¹⁰ = 17994743077 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 (17994744191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8997372050 + 8997372051.

It is an arithmetic number, because the mean of its divisors is an integer number (8997372051).

Almost surely, 2^17994744101 is an apocalyptic number.

It is an amenable number.

17994744101 is a deficient number, since it is larger than the sum of its proper divisors (1).

17994744101 is an equidigital number, since it uses as much as digits as its factorization.

17994744101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 17994744101 in words is "seventeen billion, nine hundred ninety-four million, seven hundred forty-four thousand, one hundred one".