189909746104318 has 4 divisors (see below), whose sum is σ = 284864619156480. Its totient is φ = 94954873052158.

The previous prime is 189909746104313. The next prime is 189909746104319. The reversal of 189909746104318 is 813401647909981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189909746104313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47477436526078 + ... + 47477436526081.

It is an arithmetic number, because the mean of its divisors is an integer number (71216154789120).

Almost surely, 2^{189909746104318} is an apocalyptic number.

189909746104318 is a deficient number, since it is larger than the sum of its proper divisors (94954873052162).

189909746104318 is an equidigital number, since it uses as much as digits as its factorization.

189909746104318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94954873052161.

The product of its (nonzero) digits is 94058496, while the sum is 70.

The spelling of 189909746104318 in words is "one hundred eighty-nine trillion, nine hundred nine billion, seven hundred forty-six million, one hundred four thousand, three hundred eighteen".