189374516129 has 8 divisors (see below), whose sum is σ = 195494780928. Its totient is φ = 183254964480.

The previous prime is 189374516077. The next prime is 189374516147. The reversal of 189374516129 is 921615473981.

It is a happy number.

189374516129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189374516129 - 2⁸ = 189374515873 is a prime.

It is a super-2 number, since 2×189374516129² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189374515129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390209 + ... + 728705.

It is an arithmetic number, because the mean of its divisors is an integer number (24436847616).

Almost surely, 2^189374516129 is an apocalyptic number.

It is an amenable number.

189374516129 is a deficient number, since it is larger than the sum of its proper divisors (6120264799).

189374516129 is a wasteful number, since it uses less digits than its factorization.

189374516129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356575.

The product of its digits is 3265920, while the sum is 56.

The spelling of 189374516129 in words is "one hundred eighty-nine billion, three hundred seventy-four million, five hundred sixteen thousand, one hundred twenty-nine".