17942969041 has 2 divisors, whose sum is σ = 17942969042. Its totient is φ = 17942969040.

The previous prime is 17942968961. The next prime is 17942969069. The reversal of 17942969041 is 14096924971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17614598400 + 328370641 = 132720^2 + 18121^2 .

It is a cyclic number.

It is not a de Polignac number, because 17942969041 - 2¹⁹ = 17942444753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17942969041.

It is not a weakly prime, because it can be changed into another prime (17942969741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8971484520 + 8971484521.

It is an arithmetic number, because the mean of its divisors is an integer number (8971484521).

Almost surely, 2^17942969041 is an apocalyptic number.

It is an amenable number.

17942969041 is a deficient number, since it is larger than the sum of its proper divisors (1).

17942969041 is an equidigital number, since it uses as much as digits as its factorization.

17942969041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 17942969041 in words is "seventeen billion, nine hundred forty-two million, nine hundred sixty-nine thousand, forty-one".