108445106489 has 2 divisors, whose sum is σ = 108445106490. Its totient is φ = 108445106488.

The previous prime is 108445106479. The next prime is 108445106537. The reversal of 108445106489 is 984601544801.

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., 82330546489 + 26114560000 = 286933^2 + 161600^2 .

It is a cyclic number.

It is not a de Polignac number, because 108445106489 - 2¹² = 108445102393 is a prime.

It is a super-2 number, since 2×108445106489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108445106449) 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 as a sum of consecutive naturals, namely, 54222553244 + 54222553245.

It is an arithmetic number, because the mean of its divisors is an integer number (54222553245).

Almost surely, 2^108445106489 is an apocalyptic number.

It is an amenable number.

108445106489 is a deficient number, since it is larger than the sum of its proper divisors (1).

108445106489 is an equidigital number, since it uses as much as digits as its factorization.

108445106489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 108445106489 in words is "one hundred eight billion, four hundred forty-five million, one hundred six thousand, four hundred eighty-nine".