189838103457 has 8 divisors (see below), whose sum is σ = 253162143360. Its totient is φ = 126536399600.

The previous prime is 189838103339. The next prime is 189838103473. The reversal of 189838103457 is 754301838981.

It is a happy number.

189838103457 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 189838103457 - 2¹⁸ = 189837841313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189838103397 and 189838103406.

It is not an unprimeable number, because it can be changed into a prime (189848103457) 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, 5564169 + ... + 5598182.

It is an arithmetic number, because the mean of its divisors is an integer number (31645267920).

Almost surely, 2^189838103457 is an apocalyptic number.

It is an amenable number.

189838103457 is a deficient number, since it is larger than the sum of its proper divisors (63324039903).

189838103457 is a wasteful number, since it uses less digits than its factorization.

189838103457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168023.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 189838103457 in words is "one hundred eighty-nine billion, eight hundred thirty-eight million, one hundred three thousand, four hundred fifty-seven".