189632042893 has 2 divisors, whose sum is σ = 189632042894. Its totient is φ = 189632042892.

The previous prime is 189632042891. The next prime is 189632043031. The reversal of 189632042893 is 398240236981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172933717609 + 16698325284 = 415853^2 + 129222^2 .

It is a cyclic number.

It is not a de Polignac number, because 189632042893 - 2¹ = 189632042891 is a prime.

Together with 189632042891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189632042891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94816021446 + 94816021447.

It is an arithmetic number, because the mean of its divisors is an integer number (94816021447).

Almost surely, 2^189632042893 is an apocalyptic number.

It is an amenable number.

189632042893 is a deficient number, since it is larger than the sum of its proper divisors (1).

189632042893 is an equidigital number, since it uses as much as digits as its factorization.

189632042893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 189632042893 in words is "one hundred eighty-nine billion, six hundred thirty-two million, forty-two thousand, eight hundred ninety-three".