189142125279745 has 64 divisors (see below), whose sum is σ = 259351669324800. Its totient is φ = 131192453295360.

The previous prime is 189142125279743. The next prime is 189142125279769. The reversal of 189142125279745 is 547972521241981.

It is not a de Polignac number, because 189142125279745 - 2¹ = 189142125279743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189142125279743) 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 63 ways as a sum of consecutive naturals, for example, 39392626 + ... + 43932484.

It is an arithmetic number, because the mean of its divisors is an integer number (4052369833200).

Almost surely, 2^{189142125279745} is an apocalyptic number.

It is an amenable number.

189142125279745 is a deficient number, since it is larger than the sum of its proper divisors (70209544045055).

189142125279745 is a wasteful number, since it uses less digits than its factorization.

189142125279745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540318.

The product of its digits is 101606400, while the sum is 67.

The spelling of 189142125279745 in words is "one hundred eighty-nine trillion, one hundred forty-two billion, one hundred twenty-five million, two hundred seventy-nine thousand, seven hundred forty-five".