19058528945 has 4 divisors (see below), whose sum is σ = 22870234740. Its totient is φ = 15246823152.

The previous prime is 19058528917. The next prime is 19058528959. The reversal of 19058528945 is 54982585091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54982585091 = 7 ⋅7854655013.

It can be written as a sum of positive squares in 2 ways, for example, as 6624494881 + 12434034064 = 81391^2 + 111508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19058528945 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 3 ways as a sum of consecutive naturals, for example, 1905852890 + ... + 1905852899.

It is an arithmetic number, because the mean of its divisors is an integer number (5717558685).

Almost surely, 2^19058528945 is an apocalyptic number.

It is an amenable number.

19058528945 is a deficient number, since it is larger than the sum of its proper divisors (3811705795).

19058528945 is an equidigital number, since it uses as much as digits as its factorization.

19058528945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811705794.

The product of its (nonzero) digits is 5184000, while the sum is 56.

The spelling of 19058528945 in words is "nineteen billion, fifty-eight million, five hundred twenty-eight thousand, nine hundred forty-five".