20001900050 has 96 divisors (see below), whose sum is σ = 41184417600. Its totient is φ = 7166720000.

The previous prime is 20001900043. The next prime is 20001900071. The reversal of 20001900050 is 5000910002.

It is a super-2 number, since 2×20001900050² (a number of 21 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 19628441 + ... + 19629459.

It is an arithmetic number, because the mean of its divisors is an integer number (429004350).

Almost surely, 2^20001900050 is an apocalyptic number.

20001900050 is an abundant number, since it is smaller than the sum of its proper divisors (21182517550).

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

20001900050 is a wasteful number, since it uses less digits than its factorization.

20001900050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1527 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The spelling of 20001900050 in words is "twenty billion, one million, nine hundred thousand, fifty".