18833873708161 has 2 divisors, whose sum is σ = 18833873708162. Its totient is φ = 18833873708160.

The previous prime is 18833873708131. The next prime is 18833873708197. The reversal of 18833873708161 is 16180737833881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12060555154561 + 6773318553600 = 3472831^2 + 2602560^2 .

It is a cyclic number.

It is not a de Polignac number, because 18833873708161 - 2³¹ = 18831726224513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18833873708093 and 18833873708102.

It is not a weakly prime, because it can be changed into another prime (18833873708131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9416936854080 + 9416936854081.

It is an arithmetic number, because the mean of its divisors is an integer number (9416936854081).

Almost surely, 2^{18833873708161} is an apocalyptic number.

It is an amenable number.

18833873708161 is a deficient number, since it is larger than the sum of its proper divisors (1).

18833873708161 is an equidigital number, since it uses as much as digits as its factorization.

18833873708161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 18833873708161 in words is "eighteen trillion, eight hundred thirty-three billion, eight hundred seventy-three million, seven hundred eight thousand, one hundred sixty-one".