1853366873 has 2 divisors, whose sum is σ = 1853366874. Its totient is φ = 1853366872.

The previous prime is 1853366861. The next prime is 1853366891. The reversal of 1853366873 is 3786633581.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102771264 + 750595609 = 33208^2 + 27397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853366873 - 2²⁰ = 1852318297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1853366803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926683436 + 926683437.

It is an arithmetic number, because the mean of its divisors is an integer number (926683437).

Almost surely, 2^1853366873 is an apocalyptic number.

It is an amenable number.

1853366873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853366873 is an equidigital number, since it uses as much as digits as its factorization.

1853366873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 50.

The square root of 1853366873 is about 43050.7476473986. The cubic root of 1853366873 is about 1228.3452914022.

The spelling of 1853366873 in words is "one billion, eight hundred fifty-three million, three hundred sixty-six thousand, eight hundred seventy-three".