189194415829 has 2 divisors, whose sum is σ = 189194415830. Its totient is φ = 189194415828.

The previous prime is 189194415791. The next prime is 189194415853. The reversal of 189194415829 is 928514491981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104847735204 + 84346680625 = 323802^2 + 290425^2 .

It is a cyclic number.

It is not a de Polignac number, because 189194415829 - 2¹¹ = 189194413781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189194415869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94597207914 + 94597207915.

It is an arithmetic number, because the mean of its divisors is an integer number (94597207915).

Almost surely, 2^189194415829 is an apocalyptic number.

It is an amenable number.

189194415829 is a deficient number, since it is larger than the sum of its proper divisors (1).

189194415829 is an equidigital number, since it uses as much as digits as its factorization.

189194415829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 61.

The spelling of 189194415829 in words is "one hundred eighty-nine billion, one hundred ninety-four million, four hundred fifteen thousand, eight hundred twenty-nine".