19863782050 has 24 divisors (see below), whose sum is σ = 42224726016. Its totient is φ = 6810439440.

The previous prime is 19863781999. The next prime is 19863782063. The reversal of 19863782050 is 5028736891.

It is a junction number, because it is equal to n+sod(n) for n = 19863781985 and 19863782003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28376482 + ... + 28377181.

It is an arithmetic number, because the mean of its divisors is an integer number (1759363584).

Almost surely, 2^19863782050 is an apocalyptic number.

19863782050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19863782050 is an abundant number, since it is smaller than the sum of its proper divisors (22360943966).

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

19863782050 is a wasteful number, since it uses less digits than its factorization.

19863782050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56753682 (or 56753677 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 19863782050 in words is "nineteen billion, eight hundred sixty-three million, seven hundred eighty-two thousand, fifty".