17745042373 has 2 divisors, whose sum is σ = 17745042374. Its totient is φ = 17745042372.

The previous prime is 17745042299. The next prime is 17745042407. The reversal of 17745042373 is 37324054771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17542207809 + 202834564 = 132447^2 + 14242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17745042373 is a prime.

It is a super-2 number, since 2×17745042373² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17745042773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8872521186 + 8872521187.

It is an arithmetic number, because the mean of its divisors is an integer number (8872521187).

Almost surely, 2^17745042373 is an apocalyptic number.

It is an amenable number.

17745042373 is a deficient number, since it is larger than the sum of its proper divisors (1).

17745042373 is an equidigital number, since it uses as much as digits as its factorization.

17745042373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 17745042373 in words is "seventeen billion, seven hundred forty-five million, forty-two thousand, three hundred seventy-three".