108217861869 has 16 divisors (see below), whose sum is σ = 156343070912. Its totient is φ = 66187041408.

The previous prime is 108217861837. The next prime is 108217861897. The reversal of 108217861869 is 968168712801.

It is not a de Polignac number, because 108217861869 - 2⁵ = 108217861837 is a prime.

It is a super-3 number, since 3×108217861869³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108217861819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8505352 + ... + 8518065.

It is an arithmetic number, because the mean of its divisors is an integer number (9771441932).

Almost surely, 2^108217861869 is an apocalyptic number.

It is an amenable number.

108217861869 is a deficient number, since it is larger than the sum of its proper divisors (48125209043).

108217861869 is a wasteful number, since it uses less digits than its factorization.

108217861869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023596.

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 108217861869 in words is "one hundred eight billion, two hundred seventeen million, eight hundred sixty-one thousand, eight hundred sixty-nine".