19066447445 has 8 divisors (see below), whose sum is σ = 23668693560. Its totient is φ = 14727186880.

The previous prime is 19066447429. The next prime is 19066447487. The reversal of 19066447445 is 54474466091.

It can be written as a sum of positive squares in 4 ways, for example, as 1464057169 + 17602390276 = 38263^2 + 132674^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19066447445 - 2⁴ = 19066447429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19066447393 and 19066447402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65746226 + ... + 65746515.

It is an arithmetic number, because the mean of its divisors is an integer number (2958586695).

Almost surely, 2^19066447445 is an apocalyptic number.

It is an amenable number.

19066447445 is a deficient number, since it is larger than the sum of its proper divisors (4602246115).

19066447445 is a wasteful number, since it uses less digits than its factorization.

19066447445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131492775.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 19066447445 in words is "nineteen billion, sixty-six million, four hundred forty-seven thousand, four hundred forty-five".