189406766674 has 16 divisors (see below), whose sum is σ = 293041141848. Its totient is φ = 91748356992.

The previous prime is 189406766567. The next prime is 189406766707. The reversal of 189406766674 is 476667604981.

It can be written as a sum of positive squares in 4 ways, for example, as 188871075649 + 535691025 = 434593^2 + 23145^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5475357 + ... + 5509840.

Almost surely, 2^189406766674 is an apocalyptic number.

189406766674 is a deficient number, since it is larger than the sum of its proper divisors (103634375174).

189406766674 is a wasteful number, since it uses less digits than its factorization.

189406766674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10985469.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 189406766674 in words is "one hundred eighty-nine billion, four hundred six million, seven hundred sixty-six thousand, six hundred seventy-four".