188044142269 has 2 divisors, whose sum is σ = 188044142270. Its totient is φ = 188044142268.

The previous prime is 188044142249. The next prime is 188044142287. The reversal of 188044142269 is 962241440881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175720256100 + 12323886169 = 419190^2 + 111013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188044142269 is a prime.

It is a super-2 number, since 2×188044142269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188044142219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94022071134 + 94022071135.

It is an arithmetic number, because the mean of its divisors is an integer number (94022071135).

Almost surely, 2^188044142269 is an apocalyptic number.

It is an amenable number.

188044142269 is a deficient number, since it is larger than the sum of its proper divisors (1).

188044142269 is an equidigital number, since it uses as much as digits as its factorization.

188044142269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 188044142269 in words is "one hundred eighty-eight billion, forty-four million, one hundred forty-two thousand, two hundred sixty-nine".