19046191488 has 64 divisors (see below), whose sum is σ = 50668659120. Its totient is φ = 6339041280.

The previous prime is 19046191487. The next prime is 19046191501. The reversal of 19046191488 is 88419164091.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19046191488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19046191487) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 216306 + ... + 291342.

Almost surely, 2^19046191488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19046191488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25334329560).

19046191488 is an abundant number, since it is smaller than the sum of its proper divisors (31622467632).

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

19046191488 is an equidigital number, since it uses as much as digits as its factorization.

19046191488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75715 (or 75703 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 19046191488 in words is "nineteen billion, forty-six million, one hundred ninety-one thousand, four hundred eighty-eight".