19873371448 has 16 divisors (see below), whose sum is σ = 42585796080. Its totient is φ = 8517159168.

The previous prime is 19873371443. The next prime is 19873371473. The reversal of 19873371448 is 84417337891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19873371443) 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, 177440761 + ... + 177440872.

It is an arithmetic number, because the mean of its divisors is an integer number (2661612255).

Almost surely, 2^19873371448 is an apocalyptic number.

It is an amenable number.

19873371448 is an abundant number, since it is smaller than the sum of its proper divisors (22712424632).

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

19873371448 is a wasteful number, since it uses less digits than its factorization.

19873371448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354881646 (or 354881642 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 55.

The spelling of 19873371448 in words is "nineteen billion, eight hundred seventy-three million, three hundred seventy-one thousand, four hundred forty-eight".