189008074145 has 16 divisors (see below), whose sum is σ = 247454440128. Its totient is φ = 137446146240.

The previous prime is 189008074117. The next prime is 189008074183. The reversal of 189008074145 is 541470800981.

It is a de Polignac number, because none of the positive numbers 2^k-189008074145 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189008074145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371447 + ... + 718323.

It is an arithmetic number, because the mean of its divisors is an integer number (15465902508).

Almost surely, 2^189008074145 is an apocalyptic number.

It is an amenable number.

189008074145 is a deficient number, since it is larger than the sum of its proper divisors (58446365983).

189008074145 is a wasteful number, since it uses less digits than its factorization.

189008074145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356800.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 189008074145 in words is "one hundred eighty-nine billion, eight million, seventy-four thousand, one hundred forty-five".