108515564849 has 2 divisors, whose sum is σ = 108515564850. Its totient is φ = 108515564848.

The previous prime is 108515564831. The next prime is 108515564867. The reversal of 108515564849 is 948465515801.

It is a balanced prime because it is at equal distance from previous prime (108515564831) and next prime (108515564867).

It can be written as a sum of positive squares in only one way, i.e., 55894416400 + 52621148449 = 236420^2 + 229393^2 .

It is an emirp because it is prime and its reverse (948465515801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108515564849 - 2²⁰ = 108514516273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 108515564794 and 108515564803.

It is not a weakly prime, because it can be changed into another prime (108515564249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54257782424 + 54257782425.

It is an arithmetic number, because the mean of its divisors is an integer number (54257782425).

Almost surely, 2^108515564849 is an apocalyptic number.

It is an amenable number.

108515564849 is a deficient number, since it is larger than the sum of its proper divisors (1).

108515564849 is an equidigital number, since it uses as much as digits as its factorization.

108515564849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912000, while the sum is 56.

The spelling of 108515564849 in words is "one hundred eight billion, five hundred fifteen million, five hundred sixty-four thousand, eight hundred forty-nine".