19304449968 has 80 divisors (see below), whose sum is σ = 50656909536. Its totient is φ = 6334003200.

The previous prime is 19304449951. The next prime is 19304450027. The reversal of 19304449968 is 86994440391.

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 15 ways as a sum of consecutive naturals, for example, 827196 + ... + 850212.

Almost surely, 2^19304449968 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 19304449968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25328454768).

19304449968 is an abundant number, since it is smaller than the sum of its proper divisors (31352459568).

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

19304449968 is a wasteful number, since it uses less digits than its factorization.

19304449968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23302 (or 23296 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 19304449968 in words is "nineteen billion, three hundred four million, four hundred forty-nine thousand, nine hundred sixty-eight".