19348274448 has 30 divisors (see below), whose sum is σ = 54148296254. Its totient is φ = 6449424768.

The previous prime is 19348274423. The next prime is 19348274471. The reversal of 19348274448 is 84447284391.

19348274448 is a `hidden beast` number, since 1 + 93 + 48 + 2 + 74 + 448 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15638002704 + 3710271744 = 125052^2 + 60912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19348274394 and 19348274403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67181365 + ... + 67181652.

Almost surely, 2^19348274448 is an apocalyptic number.

19348274448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19348274448 is an abundant number, since it is smaller than the sum of its proper divisors (34800021806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19348274448 is a wasteful number, since it uses less digits than its factorization.

19348274448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134363031 (or 134363022 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 19348274448 in words is "nineteen billion, three hundred forty-eight million, two hundred seventy-four thousand, four hundred forty-eight".