108816239261 has 2 divisors, whose sum is σ = 108816239262. Its totient is φ = 108816239260.

The previous prime is 108816239239. The next prime is 108816239281. The reversal of 108816239261 is 162932618801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77914115161 + 30902124100 = 279131^2 + 175790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108816239261 is a prime.

It is a super-2 number, since 2×108816239261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108816239221) 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, 54408119630 + 54408119631.

It is an arithmetic number, because the mean of its divisors is an integer number (54408119631).

Almost surely, 2^108816239261 is an apocalyptic number.

It is an amenable number.

108816239261 is a deficient number, since it is larger than the sum of its proper divisors (1).

108816239261 is an equidigital number, since it uses as much as digits as its factorization.

108816239261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 108816239261 in words is "one hundred eight billion, eight hundred sixteen million, two hundred thirty-nine thousand, two hundred sixty-one".