188248223346481 has 2 divisors, whose sum is σ = 188248223346482. Its totient is φ = 188248223346480.

The previous prime is 188248223346473. The next prime is 188248223346571. The reversal of 188248223346481 is 184643322842881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149039536830625 + 39208686515856 = 12208175^2 + 6261684^2 .

It is a cyclic number.

It is not a de Polignac number, because 188248223346481 - 2³ = 188248223346473 is a prime.

It is a super-2 number, since 2×188248223346481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188248223346581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94124111673240 + 94124111673241.

It is an arithmetic number, because the mean of its divisors is an integer number (94124111673241).

Almost surely, 2^{188248223346481} is an apocalyptic number.

It is an amenable number.

188248223346481 is a deficient number, since it is larger than the sum of its proper divisors (1).

188248223346481 is an equidigital number, since it uses as much as digits as its factorization.

188248223346481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113246208, while the sum is 64.

The spelling of 188248223346481 in words is "one hundred eighty-eight trillion, two hundred forty-eight billion, two hundred twenty-three million, three hundred forty-six thousand, four hundred eighty-one".