108751207681 has 2 divisors, whose sum is σ = 108751207682. Its totient is φ = 108751207680.

The previous prime is 108751207667. The next prime is 108751207693. The reversal of 108751207681 is 186702157801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83697383025 + 25053824656 = 289305^2 + 158284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108751207681 is a prime.

It is a super-2 number, since 2×108751207681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108751207381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54375603840 + 54375603841.

It is an arithmetic number, because the mean of its divisors is an integer number (54375603841).

Almost surely, 2^108751207681 is an apocalyptic number.

It is an amenable number.

108751207681 is a deficient number, since it is larger than the sum of its proper divisors (1).

108751207681 is an equidigital number, since it uses as much as digits as its factorization.

108751207681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 46.

The spelling of 108751207681 in words is "one hundred eight billion, seven hundred fifty-one million, two hundred seven thousand, six hundred eighty-one".