189906086273 has 24 divisors (see below), whose sum is σ = 201852845568. Its totient is φ = 178558884000.

The previous prime is 189906086243. The next prime is 189906086291. The reversal of 189906086273 is 372680609981.

It is not a de Polignac number, because 189906086273 - 2⁸ = 189906086017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189906086243) 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 in 23 ways as a sum of consecutive naturals, for example, 7880663 + ... + 7904723.

It is an arithmetic number, because the mean of its divisors is an integer number (8410535232).

Almost surely, 2^189906086273 is an apocalyptic number.

It is an amenable number.

189906086273 is a deficient number, since it is larger than the sum of its proper divisors (11946759295).

189906086273 is a wasteful number, since it uses less digits than its factorization.

189906086273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24357 (or 24326 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 189906086273 in words is "one hundred eighty-nine billion, nine hundred six million, eighty-six thousand, two hundred seventy-three".