187922041469 has 2 divisors, whose sum is σ = 187922041470. Its totient is φ = 187922041468.

The previous prime is 187922041403. The next prime is 187922041499. The reversal of 187922041469 is 964140229781.

187922041469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172931222500 + 14990818969 = 415850^2 + 122437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187922041469 is a prime.

It is a super-2 number, since 2×187922041469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 187922041469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187922041499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93961020734 + 93961020735.

It is an arithmetic number, because the mean of its divisors is an integer number (93961020735).

Almost surely, 2^187922041469 is an apocalyptic number.

It is an amenable number.

187922041469 is a deficient number, since it is larger than the sum of its proper divisors (1).

187922041469 is an equidigital number, since it uses as much as digits as its factorization.

187922041469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 187922041469 in words is "one hundred eighty-seven billion, nine hundred twenty-two million, forty-one thousand, four hundred sixty-nine".