19590640048 has 80 divisors (see below), whose sum is σ = 45273084480. Its totient is φ = 8034582528.

The previous prime is 19590639989. The next prime is 19590640093. The reversal of 19590640048 is 84004609591.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 340336 + ... + 393712.

It is an arithmetic number, because the mean of its divisors is an integer number (565913556).

Almost surely, 2^19590640048 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 19590640048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22636542240).

19590640048 is an abundant number, since it is smaller than the sum of its proper divisors (25682444432).

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

19590640048 is a wasteful number, since it uses less digits than its factorization.

19590640048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53534 (or 53528 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 19590640048 in words is "nineteen billion, five hundred ninety million, six hundred forty thousand, forty-eight".