1742257143169 has 2 divisors, whose sum is σ = 1742257143170. Its totient is φ = 1742257143168.

The previous prime is 1742257143127. The next prime is 1742257143181. The reversal of 1742257143169 is 9613417522471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121766948225 + 620490194944 = 1059135^2 + 787712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1742257143169 - 2¹⁹ = 1742256618881 is a prime.

It is a super-2 number, since 2×1742257143169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1742207143169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871128571584 + 871128571585.

It is an arithmetic number, because the mean of its divisors is an integer number (871128571585).

Almost surely, 2^{1742257143169} is an apocalyptic number.

It is an amenable number.

1742257143169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742257143169 is an equidigital number, since it uses as much as digits as its factorization.

1742257143169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The spelling of 1742257143169 in words is "one trillion, seven hundred forty-two billion, two hundred fifty-seven million, one hundred forty-three thousand, one hundred sixty-nine".