19448294850 has 144 divisors (see below), whose sum is σ = 54050540544. Its totient is φ = 5008320000.

The previous prime is 19448294837. The next prime is 19448294939. The reversal of 19448294850 is 5849284491.

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 71 ways as a sum of consecutive naturals, for example, 8271175 + ... + 8273525.

It is an arithmetic number, because the mean of its divisors is an integer number (375350976).

Almost surely, 2^19448294850 is an apocalyptic number.

19448294850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19448294850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27025270272).

19448294850 is an abundant number, since it is smaller than the sum of its proper divisors (34602245694).

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

19448294850 is a wasteful number, since it uses less digits than its factorization.

19448294850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 19448294850 in words is "nineteen billion, four hundred forty-eight million, two hundred ninety-four thousand, eight hundred fifty".