189120926539 has 2 divisors, whose sum is σ = 189120926540. Its totient is φ = 189120926538.

The previous prime is 189120926537. The next prime is 189120926567. The reversal of 189120926539 is 935629021981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189120926539 - 2¹ = 189120926537 is a prime.

Together with 189120926537, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 189120926539.

It is not a weakly prime, because it can be changed into another prime (189120926537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94560463269 + 94560463270.

It is an arithmetic number, because the mean of its divisors is an integer number (94560463270).

Almost surely, 2^189120926539 is an apocalyptic number.

189120926539 is a deficient number, since it is larger than the sum of its proper divisors (1).

189120926539 is an equidigital number, since it uses as much as digits as its factorization.

189120926539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 189120926539 in words is "one hundred eighty-nine billion, one hundred twenty million, nine hundred twenty-six thousand, five hundred thirty-nine".