189341043251 has 4 divisors (see below), whose sum is σ = 189913070904. Its totient is φ = 188769015600.

The previous prime is 189341043163. The next prime is 189341043337. The reversal of 189341043251 is 152340143981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 189341043251 - 2¹⁸ = 189340781107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189341043199 and 189341043208.

It is not an unprimeable number, because it can be changed into a prime (189341093251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 286013330 + ... + 286013991.

It is an arithmetic number, because the mean of its divisors is an integer number (47478267726).

Almost surely, 2^189341043251 is an apocalyptic number.

189341043251 is a deficient number, since it is larger than the sum of its proper divisors (572027653).

189341043251 is an equidigital number, since it uses as much as digits as its factorization.

189341043251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572027652.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 189341043251 in words is "one hundred eighty-nine billion, three hundred forty-one million, forty-three thousand, two hundred fifty-one".