108748335492989 has 2 divisors, whose sum is σ = 108748335492990. Its totient is φ = 108748335492988.

The previous prime is 108748335492983. The next prime is 108748335493099. The reversal of 108748335492989 is 989294533847801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87634724040964 + 21113611452025 = 9361342^2 + 4594955^2 .

It is a cyclic number.

It is not a de Polignac number, because 108748335492989 - 2¹⁶ = 108748335427453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108748335492983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54374167746494 + 54374167746495.

It is an arithmetic number, because the mean of its divisors is an integer number (54374167746495).

Almost surely, 2^{108748335492989} is an apocalyptic number.

It is an amenable number.

108748335492989 is a deficient number, since it is larger than the sum of its proper divisors (1).

108748335492989 is an equidigital number, since it uses as much as digits as its factorization.

108748335492989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3762339840, while the sum is 80.

The spelling of 108748335492989 in words is "one hundred eight trillion, seven hundred forty-eight billion, three hundred thirty-five million, four hundred ninety-two thousand, nine hundred eighty-nine".