19072998050 has 18 divisors (see below), whose sum is σ = 35477592849. Its totient is φ = 7628808600.

The previous prime is 19072998013. The next prime is 19072998097. The reversal of 19072998050 is 5089927091.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18691538089 + 381459961 = 136717^2 + 19531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=97655.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19072998050.

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 8 ways as a sum of consecutive naturals, for example, 966785 + ... + 986315.

Almost surely, 2^19072998050 is an apocalyptic number.

19072998050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19072998050 is a deficient number, since it is larger than the sum of its proper divisors (16404594799).

19072998050 is an frugal number, since it uses more digits than its factorization.

19072998050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39074 (or 19538 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 50.

Multiplying 19072998050 by its sum of digits (50), we get a square (953649902500 = 976550²).

19072998050 divided by its sum of digits (50) gives a square (381459961 = 19531²).

The spelling of 19072998050 in words is "nineteen billion, seventy-two million, nine hundred ninety-eight thousand, fifty".