19042045650 has 96 divisors (see below), whose sum is σ = 52499764800. Its totient is φ = 5075136000.

The previous prime is 19042045579. The next prime is 19042045733. The reversal of 19042045650 is 5654024091.

19042045650 is a `hidden beast` number, since 1 + 90 + 4 + 2 + 0 + 4 + 565 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4275925 + ... + 4280375.

It is an arithmetic number, because the mean of its divisors is an integer number (546872550).

Almost surely, 2^19042045650 is an apocalyptic number.

19042045650 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 19042045650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26249882400).

19042045650 is an abundant number, since it is smaller than the sum of its proper divisors (33457719150).

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

19042045650 is a wasteful number, since it uses less digits than its factorization.

19042045650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641 (or 7630 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 19042045650 in words is "nineteen billion, forty-two million, forty-five thousand, six hundred fifty".