19242828638 has 8 divisors (see below), whose sum is σ = 31488265080. Its totient is φ = 8746740280.

The previous prime is 19242828623. The next prime is 19242828641. The reversal of 19242828638 is 83682824291.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19242828638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437336993 + ... + 437337036.

It is an arithmetic number, because the mean of its divisors is an integer number (3936033135).

Almost surely, 2^19242828638 is an apocalyptic number.

19242828638 is a deficient number, since it is larger than the sum of its proper divisors (12245436442).

19242828638 is a wasteful number, since it uses less digits than its factorization.

19242828638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874674042.

The product of its digits is 2654208, while the sum is 53.

The spelling of 19242828638 in words is "nineteen billion, two hundred forty-two million, eight hundred twenty-eight thousand, six hundred thirty-eight".