108018247681 has 2 divisors, whose sum is σ = 108018247682. Its totient is φ = 108018247680.

The previous prime is 108018247661. The next prime is 108018247691. The reversal of 108018247681 is 186742810801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63141638400 + 44876609281 = 251280^2 + 211841^2 .

It is a cyclic number.

It is not a de Polignac number, because 108018247681 - 2³¹ = 105870764033 is a prime.

It is a super-3 number, since 3×108018247681³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (108018247661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54009123840 + 54009123841.

It is an arithmetic number, because the mean of its divisors is an integer number (54009123841).

Almost surely, 2^108018247681 is an apocalyptic number.

It is an amenable number.

108018247681 is a deficient number, since it is larger than the sum of its proper divisors (1).

108018247681 is an equidigital number, since it uses as much as digits as its factorization.

108018247681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 108018247681 in words is "one hundred eight billion, eighteen million, two hundred forty-seven thousand, six hundred eighty-one".