1850168350073 has 2 divisors, whose sum is σ = 1850168350074. Its totient is φ = 1850168350072.

The previous prime is 1850168349977. The next prime is 1850168350099. The reversal of 1850168350073 is 3700538610581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1455516776704 + 394651573369 = 1206448^2 + 628213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850168350073 - 2²² = 1850164155769 is a prime.

It is a super-2 number, since 2×1850168350073² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1850168350673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925084175036 + 925084175037.

It is an arithmetic number, because the mean of its divisors is an integer number (925084175037).

Almost surely, 2^{1850168350073} is an apocalyptic number.

It is an amenable number.

1850168350073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850168350073 is an equidigital number, since it uses as much as digits as its factorization.

1850168350073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 1850168350073 in words is "one trillion, eight hundred fifty billion, one hundred sixty-eight million, three hundred fifty thousand, seventy-three".