188061054449 has 2 divisors, whose sum is σ = 188061054450. Its totient is φ = 188061054448.

The previous prime is 188061054443. The next prime is 188061054491. The reversal of 188061054449 is 944450160881.

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., 167070840049 + 20990214400 = 408743^2 + 144880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188061054449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188061054397 and 188061054406.

It is not a weakly prime, because it can be changed into another prime (188061054443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94030527224 + 94030527225.

It is an arithmetic number, because the mean of its divisors is an integer number (94030527225).

Almost surely, 2^188061054449 is an apocalyptic number.

It is an amenable number.

188061054449 is a deficient number, since it is larger than the sum of its proper divisors (1).

188061054449 is an equidigital number, since it uses as much as digits as its factorization.

188061054449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 188061054449 in words is "one hundred eighty-eight billion, sixty-one million, fifty-four thousand, four hundred forty-nine".