5105989091 has 6 divisors (see below), whose sum is σ = 5939620020. Its totient is φ = 4376562036.

The previous prime is 5105989087. The next prime is 5105989093. The reversal of 5105989091 is 1909895015.

It is not a de Polignac number, because 5105989091 - 2² = 5105989087 is a prime.

It is a super-3 number, since 3×5105989091³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105989093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52101881 + ... + 52101978.

It is an arithmetic number, because the mean of its divisors is an integer number (989936670).

Almost surely, 2^5105989091 is an apocalyptic number.

5105989091 is a deficient number, since it is larger than the sum of its proper divisors (833630929).

5105989091 is a wasteful number, since it uses less digits than its factorization.

5105989091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104203873 (or 104203866 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 47.

The square root of 5105989091 is about 71456.2040063702. The cubic root of 5105989091 is about 1721.9741496990.

The spelling of 5105989091 in words is "five billion, one hundred five million, nine hundred eighty-nine thousand, ninety-one".