19427045248 has 64 divisors (see below), whose sum is σ = 43116746400. Its totient is φ = 8657123328.

The previous prime is 19427045221. The next prime is 19427045251. The reversal of 19427045248 is 84254072491.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 19427045198 and 19427045207.

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, 153036 + ... + 249547.

Almost surely, 2^19427045248 is an apocalyptic number.

It is an amenable number.

19427045248 is an abundant number, since it is smaller than the sum of its proper divisors (23689701152).

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

19427045248 is a wasteful number, since it uses less digits than its factorization.

19427045248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402639 (or 402627 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 19427045248 in words is "nineteen billion, four hundred twenty-seven million, forty-five thousand, two hundred forty-eight".