189191067712 has 56 divisors (see below), whose sum is σ = 397620585504. Its totient is φ = 89006303232.

The previous prime is 189191067707. The next prime is 189191067713. The reversal of 189191067712 is 217760191981.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 189191067712.

It is not an unprimeable number, because it can be changed into a prime (189191067713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4228563 + ... + 4273069.

Almost surely, 2^189191067712 is an apocalyptic number.

It is an amenable number.

189191067712 is an abundant number, since it is smaller than the sum of its proper divisors (208429517792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189191067712 is a wasteful number, since it uses less digits than its factorization.

189191067712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48443 (or 48433 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 52.

The spelling of 189191067712 in words is "one hundred eighty-nine billion, one hundred ninety-one million, sixty-seven thousand, seven hundred twelve".