19473933533161 has 2 divisors, whose sum is σ = 19473933533162. Its totient is φ = 19473933533160.

The previous prime is 19473933533143. The next prime is 19473933533191. The reversal of 19473933533161 is 16133533937491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19211179899136 + 262753634025 = 4383056^2 + 512595^2 .

It is a cyclic number.

It is not a de Polignac number, because 19473933533161 - 2¹¹ = 19473933531113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19473933533096 and 19473933533105.

It is not a weakly prime, because it can be changed into another prime (19473933533111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9736966766580 + 9736966766581.

It is an arithmetic number, because the mean of its divisors is an integer number (9736966766581).

Almost surely, 2^{19473933533161} is an apocalyptic number.

It is an amenable number.

19473933533161 is a deficient number, since it is larger than the sum of its proper divisors (1).

19473933533161 is an equidigital number, since it uses as much as digits as its factorization.

19473933533161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16533720, while the sum is 58.

The spelling of 19473933533161 in words is "nineteen trillion, four hundred seventy-three billion, nine hundred thirty-three million, five hundred thirty-three thousand, one hundred sixty-one".