17940420299 has 2 divisors, whose sum is σ = 17940420300. Its totient is φ = 17940420298.

The previous prime is 17940420271. The next prime is 17940420313. The reversal of 17940420299 is 99202404971.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17940420299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (17940420259) 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, 8970210149 + 8970210150.

It is an arithmetic number, because the mean of its divisors is an integer number (8970210150).

Almost surely, 2^17940420299 is an apocalyptic number.

17940420299 is a deficient number, since it is larger than the sum of its proper divisors (1).

17940420299 is an equidigital number, since it uses as much as digits as its factorization.

17940420299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 17940420299 in words is "seventeen billion, nine hundred forty million, four hundred twenty thousand, two hundred ninety-nine".