100005004989 has 6 divisors (see below), whose sum is σ = 144451673886. Its totient is φ = 66670003320.

The previous prime is 100005004973. The next prime is 100005004991. The reversal of 100005004989 is 989400500001.

100005004989 is a `hidden beast` number, since 100 + 0 + 0 + 500 + 49 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84515211225 + 15489793764 = 290715^2 + 124458^2 .

It is not a de Polignac number, because 100005004989 - 2⁴ = 100005004973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100005004919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5555833602 + ... + 5555833619.

It is an arithmetic number, because the mean of its divisors is an integer number (24075278981).

Almost surely, 2^100005004989 is an apocalyptic number.

It is an amenable number.

100005004989 is a deficient number, since it is larger than the sum of its proper divisors (44446668897).

100005004989 is a wasteful number, since it uses less digits than its factorization.

100005004989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111667227 (or 11111667224 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 100005004989 in words is "one hundred billion, five million, four thousand, nine hundred eighty-nine".