189054795845 has 4 divisors (see below), whose sum is σ = 226865755020. Its totient is φ = 151243836672.

The previous prime is 189054795803. The next prime is 189054795871. The reversal of 189054795845 is 548597450981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548597450981 = 17 ⋅32270438293.

It can be written as a sum of positive squares in 2 ways, for example, as 145949977156 + 43104818689 = 382034^2 + 207617^2 .

It is a cyclic number.

It is not a de Polignac number, because 189054795845 - 2¹² = 189054791749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18905479580 + ... + 18905479589.

It is an arithmetic number, because the mean of its divisors is an integer number (56716438755).

Almost surely, 2^189054795845 is an apocalyptic number.

It is an amenable number.

189054795845 is a deficient number, since it is larger than the sum of its proper divisors (37810959175).

189054795845 is an equidigital number, since it uses as much as digits as its factorization.

189054795845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37810959174.

The product of its (nonzero) digits is 72576000, while the sum is 65.

The spelling of 189054795845 in words is "one hundred eighty-nine billion, fifty-four million, seven hundred ninety-five thousand, eight hundred forty-five".