19878050288 has 20 divisors (see below), whose sum is σ = 40188232848. Its totient is φ = 9506893440.

The previous prime is 19878050273. The next prime is 19878050293. The reversal of 19878050288 is 88205087891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27007853 + ... + 27008588.

Almost surely, 2^19878050288 is an apocalyptic number.

It is an amenable number.

19878050288 is an abundant number, since it is smaller than the sum of its proper divisors (20310182560).

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

19878050288 is a wasteful number, since it uses less digits than its factorization.

19878050288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54016472 (or 54016466 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 56.

The spelling of 19878050288 in words is "nineteen billion, eight hundred seventy-eight million, fifty thousand, two hundred eighty-eight".