189527869429 has 2 divisors, whose sum is σ = 189527869430. Its totient is φ = 189527869428.

The previous prime is 189527869411. The next prime is 189527869441. The reversal of 189527869429 is 924968725981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165169088100 + 24358781329 = 406410^2 + 156073^2 .

It is an emirp because it is prime and its reverse (924968725981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189527869429 - 2⁹ = 189527868917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189527869499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94763934714 + 94763934715.

It is an arithmetic number, because the mean of its divisors is an integer number (94763934715).

Almost surely, 2^189527869429 is an apocalyptic number.

It is an amenable number.

189527869429 is a deficient number, since it is larger than the sum of its proper divisors (1).

189527869429 is an equidigital number, since it uses as much as digits as its factorization.

189527869429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 70.

The spelling of 189527869429 in words is "one hundred eighty-nine billion, five hundred twenty-seven million, eight hundred sixty-nine thousand, four hundred twenty-nine".