7941873123409 has 2 divisors, whose sum is σ = 7941873123410. Its totient is φ = 7941873123408.

The previous prime is 7941873123367. The next prime is 7941873123433. The reversal of 7941873123409 is 9043213781497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5821217798400 + 2120655325009 = 2412720^2 + 1456247^2 .

It is a cyclic number.

It is not a de Polignac number, because 7941873123409 - 2¹³ = 7941873115217 is a prime.

It is not a weakly prime, because it can be changed into another prime (7941873123439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970936561704 + 3970936561705.

It is an arithmetic number, because the mean of its divisors is an integer number (3970936561705).

Almost surely, 2^{7941873123409} is an apocalyptic number.

It is an amenable number.

7941873123409 is a deficient number, since it is larger than the sum of its proper divisors (1).

7941873123409 is an equidigital number, since it uses as much as digits as its factorization.

7941873123409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 7941873123409 in words is "seven trillion, nine hundred forty-one billion, eight hundred seventy-three million, one hundred twenty-three thousand, four hundred nine".