181748241163 has 2 divisors, whose sum is σ = 181748241164. Its totient is φ = 181748241162.

The previous prime is 181748241137. The next prime is 181748241167. The reversal of 181748241163 is 361142847181.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 181748241163 - 2²¹ = 181746144011 is a prime.

It is not a weakly prime, because it can be changed into another prime (181748241167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90874120581 + 90874120582.

It is an arithmetic number, because the mean of its divisors is an integer number (90874120582).

Almost surely, 2^181748241163 is an apocalyptic number.

181748241163 is a deficient number, since it is larger than the sum of its proper divisors (1).

181748241163 is an equidigital number, since it uses as much as digits as its factorization.

181748241163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 46.

The spelling of 181748241163 in words is "one hundred eighty-one billion, seven hundred forty-eight million, two hundred forty-one thousand, one hundred sixty-three".