108216926777 has 2 divisors, whose sum is σ = 108216926778. Its totient is φ = 108216926776.

The previous prime is 108216926761. The next prime is 108216926863. The reversal of 108216926777 is 777629612801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56661137296 + 51555789481 = 238036^2 + 227059^2 .

It is a cyclic number.

It is not a de Polignac number, because 108216926777 - 2⁴ = 108216926761 is a prime.

It is not a weakly prime, because it can be changed into another prime (108216926677) by changing a digit.

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 as a sum of consecutive naturals, namely, 54108463388 + 54108463389.

It is an arithmetic number, because the mean of its divisors is an integer number (54108463389).

Almost surely, 2^108216926777 is an apocalyptic number.

It is an amenable number.

108216926777 is a deficient number, since it is larger than the sum of its proper divisors (1).

108216926777 is an equidigital number, since it uses as much as digits as its factorization.

108216926777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 108216926777 in words is "one hundred eight billion, two hundred sixteen million, nine hundred twenty-six thousand, seven hundred seventy-seven".