19385292050 has 24 divisors (see below), whose sum is σ = 36093639636. Its totient is φ = 7746160640.

The previous prime is 19385292029. The next prime is 19385292079. The reversal of 19385292050 is 5029258391.

It can be written as a sum of positive squares in 6 ways, for example, as 7639284409 + 11746007641 = 87403^2 + 108379^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19385291992 and 19385292010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149567 + ... + 247266.

Almost surely, 2^19385292050 is an apocalyptic number.

19385292050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19385292050 is a deficient number, since it is larger than the sum of its proper divisors (16708347586).

19385292050 is a wasteful number, since it uses less digits than its factorization.

19385292050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397822 (or 397817 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 19385292050 in words is "nineteen billion, three hundred eighty-five million, two hundred ninety-two thousand, fifty".