108478224122945 has 4 divisors (see below), whose sum is σ = 130173868947540. Its totient is φ = 86782579298352.

The previous prime is 108478224122843. The next prime is 108478224122951. The reversal of 108478224122945 is 549221422874801.

It is a Cunningham number, because it is equal to 10415288²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39052150685584 + 69426073437361 = 6249172^2 + 8332231^2 .

It is a cyclic number.

It is not a de Polignac number, because 108478224122945 - 2²² = 108478219928641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10847822412290 + ... + 10847822412299.

It is an arithmetic number, because the mean of its divisors is an integer number (32543467236885).

Almost surely, 2^{108478224122945} is an apocalyptic number.

It is an amenable number.

108478224122945 is a deficient number, since it is larger than the sum of its proper divisors (21695644824595).

108478224122945 is an equidigital number, since it uses as much as digits as its factorization.

108478224122945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21695644824594.

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 108478224122945 in words is "one hundred eight trillion, four hundred seventy-eight billion, two hundred twenty-four million, one hundred twenty-two thousand, nine hundred forty-five".