989901000050 has 24 divisors (see below), whose sum is σ = 1843349446656. Its totient is φ = 395501564240.

The previous prime is 989901000043. The next prime is 989901000061. The reversal of 989901000050 is 50000109989.

It is a junction number, because it is equal to n+sod(n) for n = 989900999971 and 989901000007.

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, 11427314 + ... + 11513613.

It is an arithmetic number, because the mean of its divisors is an integer number (76806226944).

Almost surely, 2^989901000050 is an apocalyptic number.

989901000050 is a deficient number, since it is larger than the sum of its proper divisors (853448446606).

989901000050 is a wasteful number, since it uses less digits than its factorization.

989901000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22941802 (or 22941797 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 989901000050 in words is "nine hundred eighty-nine billion, nine hundred one million, fifty", and thus it is an aban number.