19073144485 has 8 divisors (see below), whose sum is σ = 22903153560. Its totient is φ = 15248262144.

The previous prime is 19073144459. The next prime is 19073144549. The reversal of 19073144485 is 58444137091.

It can be written as a sum of positive squares in 4 ways, for example, as 982081 + 19072162404 = 991^2 + 138102^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19073144485 - 2¹¹ = 19073142437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273492 + ... + 1288381.

It is an arithmetic number, because the mean of its divisors is an integer number (2862894195).

Almost surely, 2^19073144485 is an apocalyptic number.

It is an amenable number.

19073144485 is a deficient number, since it is larger than the sum of its proper divisors (3830009075).

19073144485 is a wasteful number, since it uses less digits than its factorization.

19073144485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563367.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 19073144485 in words is "nineteen billion, seventy-three million, one hundred forty-four thousand, four hundred eighty-five".