109056564989 has 2 divisors, whose sum is σ = 109056564990. Its totient is φ = 109056564988.

The previous prime is 109056564983. The next prime is 109056564997. The reversal of 109056564989 is 989465650901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104788164100 + 4268400889 = 323710^2 + 65333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109056564989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109056564983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54528282494 + 54528282495.

It is an arithmetic number, because the mean of its divisors is an integer number (54528282495).

Almost surely, 2^109056564989 is an apocalyptic number.

It is an amenable number.

109056564989 is a deficient number, since it is larger than the sum of its proper divisors (1).

109056564989 is an equidigital number, since it uses as much as digits as its factorization.

109056564989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 109056564989 in words is "one hundred nine billion, fifty-six million, five hundred sixty-four thousand, nine hundred eighty-nine".