105060509989 has 2 divisors, whose sum is σ = 105060509990. Its totient is φ = 105060509988.

The previous prime is 105060509987. The next prime is 105060510001. The reversal of 105060509989 is 989905060501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103711049764 + 1349460225 = 322042^2 + 36735^2 .

It is a cyclic number.

It is not a de Polignac number, because 105060509989 - 2¹ = 105060509987 is a prime.

It is a super-2 number, since 2×105060509989² (a number of 23 digits) contains 22 as substring.

Together with 105060509987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105060509987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52530254994 + 52530254995.

It is an arithmetic number, because the mean of its divisors is an integer number (52530254995).

Almost surely, 2^105060509989 is an apocalyptic number.

It is an amenable number.

105060509989 is a deficient number, since it is larger than the sum of its proper divisors (1).

105060509989 is an equidigital number, since it uses as much as digits as its factorization.

105060509989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 874800, while the sum is 52.

The spelling of 105060509989 in words is "one hundred five billion, sixty million, five hundred nine thousand, nine hundred eighty-nine".