19229566050 has 90 divisors (see below), whose sum is σ = 53454236913. Its totient is φ = 5125530960.

The previous prime is 19229566039. The next prime is 19229566117. The reversal of 19229566050 is 5066592291.

It is a happy number.

19229566050 is a `hidden beast` number, since 19 + 2 + 29 + 5 + 6 + 605 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18844974729 + 384591321 = 137277^2 + 19611^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=98055.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 19229565987 and 19229566005.

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 44 ways as a sum of consecutive naturals, for example, 8823861 + ... + 8826039.

Almost surely, 2^19229566050 is an apocalyptic number.

19229566050 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 19229566050

19229566050 is an abundant number, since it is smaller than the sum of its proper divisors (34224670863).

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

19229566050 is an frugal number, since it uses more digits than its factorization.

19229566050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 19229566050 in words is "nineteen billion, two hundred twenty-nine million, five hundred sixty-six thousand, fifty".