108365687281 has 8 divisors (see below), whose sum is σ = 114960379464. Its totient is φ = 101795466240.

The previous prime is 108365687267. The next prime is 108365687291. The reversal of 108365687281 is 182786563801.

It can be written as a sum of positive squares in 4 ways, for example, as 4098048256 + 104267639025 = 64016^2 + 322905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108365687281 - 2⁷ = 108365687153 is a prime.

It is a super-2 number, since 2×108365687281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108365687231) 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 in 7 ways as a sum of consecutive naturals, for example, 6108660 + ... + 6126373.

It is an arithmetic number, because the mean of its divisors is an integer number (14370047433).

Almost surely, 2^108365687281 is an apocalyptic number.

It is an amenable number.

108365687281 is a deficient number, since it is larger than the sum of its proper divisors (6594692183).

108365687281 is a wasteful number, since it uses less digits than its factorization.

108365687281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235571.

The product of its (nonzero) digits is 3870720, while the sum is 55.

It can be divided in two parts, 10836568 and 7281, that added together give a square (10843849 = 3293²).

The spelling of 108365687281 in words is "one hundred eight billion, three hundred sixty-five million, six hundred eighty-seven thousand, two hundred eighty-one".