19066362449 has 4 divisors (see below), whose sum is σ = 19068323940. Its totient is φ = 19064400960.

The previous prime is 19066362437. The next prime is 19066362457. The reversal of 19066362449 is 94426366091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7132984849 + 11933377600 = 84457^2 + 109240^2 .

It is a cyclic number.

It is not a de Polignac number, because 19066362449 - 2⁴ = 19066362433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19066362397 and 19066362406.

It is not an unprimeable number, because it can be changed into a prime (19066367449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966092 + ... + 985629.

It is an arithmetic number, because the mean of its divisors is an integer number (4767080985).

Almost surely, 2^19066362449 is an apocalyptic number.

It is an amenable number.

19066362449 is a deficient number, since it is larger than the sum of its proper divisors (1961491).

19066362449 is an equidigital number, since it uses as much as digits as its factorization.

19066362449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961490.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 19066362449 in words is "nineteen billion, sixty-six million, three hundred sixty-two thousand, four hundred forty-nine".