189985756296 has 64 divisors (see below), whose sum is σ = 545146243200. Its totient is φ = 54048665088.

The previous prime is 189985756183. The next prime is 189985756297. The reversal of 189985756296 is 692657589981.

It is not an unprimeable number, because it can be changed into a prime (189985756297) 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 15 ways as a sum of consecutive naturals, for example, 2387611 + ... + 2465898.

It is an arithmetic number, because the mean of its divisors is an integer number (8517910050).

Almost surely, 2^189985756296 is an apocalyptic number.

It is an amenable number.

189985756296 is an abundant number, since it is smaller than the sum of its proper divisors (355160486904).

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

189985756296 is a wasteful number, since it uses less digits than its factorization.

189985756296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853758 (or 4853754 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 75.

The spelling of 189985756296 in words is "one hundred eighty-nine billion, nine hundred eighty-five million, seven hundred fifty-six thousand, two hundred ninety-six".