742843585348169 has 2 divisors, whose sum is σ = 742843585348170. Its totient is φ = 742843585348168.

The previous prime is 742843585348103. The next prime is 742843585348247. The reversal of 742843585348169 is 961843585348247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501996930362944 + 240846654985225 = 22405288^2 + 15519235^2 .

It is a cyclic number.

It is not a de Polignac number, because 742843585348169 - 2¹⁶ = 742843585282633 is a prime.

It is a super-2 number, since 2×742843585348169² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 742843585348169.

It is not a weakly prime, because it can be changed into another prime (742843585347169) 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, 371421792674084 + 371421792674085.

It is an arithmetic number, because the mean of its divisors is an integer number (371421792674085).

Almost surely, 2^{742843585348169} is an apocalyptic number.

It is an amenable number.

742843585348169 is a deficient number, since it is larger than the sum of its proper divisors (1).

742843585348169 is an equidigital number, since it uses as much as digits as its factorization.

742843585348169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5573836800, while the sum is 77.

The spelling of 742843585348169 in words is "seven hundred forty-two trillion, eight hundred forty-three billion, five hundred eighty-five million, three hundred forty-eight thousand, one hundred sixty-nine".