19075223808 has 108 divisors (see below), whose sum is σ = 56277901680. Its totient is φ = 6210505728.

The previous prime is 19075223803. The next prime is 19075223833. The reversal of 19075223808 is 80832257091.

It is a happy number.

19075223808 is a `hidden beast` number, since 1 + 90 + 7 + 522 + 38 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (19075223803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2803 + ... + 195341.

Almost surely, 2^19075223808 is an apocalyptic number.

19075223808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19075223808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28138950840).

19075223808 is an abundant number, since it is smaller than the sum of its proper divisors (37202677872).

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

19075223808 is a wasteful number, since it uses less digits than its factorization.

19075223808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192604 (or 192587 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 19075223808 in words is "nineteen billion, seventy-five million, two hundred twenty-three thousand, eight hundred eight".