19589396050 has 48 divisors (see below), whose sum is σ = 42609897792. Its totient is φ = 6560164800.

The previous prime is 19589396039. The next prime is 19589396059. The reversal of 19589396050 is 5069398591.

It is a junction number, because it is equal to n+sod(n) for n = 19589395982 and 19589396000.

It is not an unprimeable number, because it can be changed into a prime (19589396059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 635761 + ... + 665860.

It is an arithmetic number, because the mean of its divisors is an integer number (887706204).

Almost surely, 2^19589396050 is an apocalyptic number.

19589396050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19589396050 is an abundant number, since it is smaller than the sum of its proper divisors (23020501742).

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

19589396050 is a wasteful number, since it uses less digits than its factorization.

19589396050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301683 (or 1301678 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 55.

The spelling of 19589396050 in words is "nineteen billion, five hundred eighty-nine million, three hundred ninety-six thousand, fifty".