189245948611105 has 32 divisors (see below), whose sum is σ = 240933674741760. Its totient is φ = 142296848547840.

The previous prime is 189245948611087. The next prime is 189245948611117. The reversal of 189245948611105 is 501116849542981.

It is not a de Polignac number, because 189245948611105 - 2¹³ = 189245948602913 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1287515377 + ... + 1287662353.

It is an arithmetic number, because the mean of its divisors is an integer number (7529177335680).

Almost surely, 2^{189245948611105} is an apocalyptic number.

It is an amenable number.

189245948611105 is a deficient number, since it is larger than the sum of its proper divisors (51687726130655).

189245948611105 is a wasteful number, since it uses less digits than its factorization.

189245948611105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253849.

The product of its (nonzero) digits is 24883200, while the sum is 64.

The spelling of 189245948611105 in words is "one hundred eighty-nine trillion, two hundred forty-five billion, nine hundred forty-eight million, six hundred eleven thousand, one hundred five".