189463185142 has 16 divisors (see below), whose sum is σ = 354320762112. Its totient is φ = 73816825320.

The previous prime is 189463185139. The next prime is 189463185179. The reversal of 189463185142 is 241581364981.

It is a self number, because there is not a number n which added to its sum of digits gives 189463185142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615140058 + ... + 615140365.

It is an arithmetic number, because the mean of its divisors is an integer number (22145047632).

Almost surely, 2^189463185142 is an apocalyptic number.

189463185142 is a deficient number, since it is larger than the sum of its proper divisors (164857576970).

189463185142 is a wasteful number, since it uses less digits than its factorization.

189463185142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230280443.

The product of its digits is 1658880, while the sum is 52.

The spelling of 189463185142 in words is "one hundred eighty-nine billion, four hundred sixty-three million, one hundred eighty-five thousand, one hundred forty-two".