189611526442 has 32 divisors (see below), whose sum is σ = 318001698000. Its totient is φ = 84190192128.

The previous prime is 189611526431. The next prime is 189611526479. The reversal of 189611526442 is 244625116981.

It can be written as a sum of positive squares in 8 ways, for example, as 5922995521 + 183688530921 = 76961^2 + 428589^2 .

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 15 ways as a sum of consecutive naturals, for example, 245067 + ... + 662782.

Almost surely, 2^189611526442 is an apocalyptic number.

189611526442 is a deficient number, since it is larger than the sum of its proper divisors (128390171558).

189611526442 is a wasteful number, since it uses less digits than its factorization.

189611526442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908170.

The product of its digits is 829440, while the sum is 49.

The spelling of 189611526442 in words is "one hundred eighty-nine billion, six hundred eleven million, five hundred twenty-six thousand, four hundred forty-two".