189716454769 has 12 divisors (see below), whose sum is σ = 204083776000. Its totient is φ = 176296431168.

The previous prime is 189716454709. The next prime is 189716454821. The reversal of 189716454769 is 967454617981.

It is not a de Polignac number, because 189716454769 - 2¹⁷ = 189716323697 is a prime.

It is a super-2 number, since 2×189716454769² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (189716454709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4131969 + ... + 4177630.

Almost surely, 2^189716454769 is an apocalyptic number.

It is an amenable number.

189716454769 is a deficient number, since it is larger than the sum of its proper divisors (14367321231).

189716454769 is an equidigital number, since it uses as much as digits as its factorization.

189716454769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8309712 (or 8309695 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 67.

The spelling of 189716454769 in words is "one hundred eighty-nine billion, seven hundred sixteen million, four hundred fifty-four thousand, seven hundred sixty-nine".