17994736411 has 2 divisors, whose sum is σ = 17994736412. Its totient is φ = 17994736410.

The previous prime is 17994736393. The next prime is 17994736423. The reversal of 17994736411 is 11463749971.

It is a strong prime.

It is an emirp because it is prime and its reverse (11463749971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17994736411 - 2¹¹ = 17994734363 is a prime.

It is not a weakly prime, because it can be changed into another prime (17994746411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8997368205 + 8997368206.

It is an arithmetic number, because the mean of its divisors is an integer number (8997368206).

Almost surely, 2^17994736411 is an apocalyptic number.

17994736411 is a deficient number, since it is larger than the sum of its proper divisors (1).

17994736411 is an equidigital number, since it uses as much as digits as its factorization.

17994736411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 52.

The spelling of 17994736411 in words is "seventeen billion, nine hundred ninety-four million, seven hundred thirty-six thousand, four hundred eleven".