17940309241 has 2 divisors, whose sum is σ = 17940309242. Its totient is φ = 17940309240.

The previous prime is 17940309227. The next prime is 17940309263. The reversal of 17940309241 is 14290304971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17939923600 + 385641 = 133940^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 17940309241 - 2¹⁷ = 17940178169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17940309194 and 17940309203.

It is not a weakly prime, because it can be changed into another prime (17940309341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8970154620 + 8970154621.

It is an arithmetic number, because the mean of its divisors is an integer number (8970154621).

Almost surely, 2^17940309241 is an apocalyptic number.

It is an amenable number.

17940309241 is a deficient number, since it is larger than the sum of its proper divisors (1).

17940309241 is an equidigital number, since it uses as much as digits as its factorization.

17940309241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 17940309241 in words is "seventeen billion, nine hundred forty million, three hundred nine thousand, two hundred forty-one".