108641897860 has 48 divisors (see below), whose sum is σ = 236380757760. Its totient is φ = 41893255040.

The previous prime is 108641897849. The next prime is 108641897869. The reversal of 108641897860 is 68798146801.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 108641897795 and 108641897804.

It is not an unprimeable number, because it can be changed into a prime (108641897869) 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 15 ways as a sum of consecutive naturals, for example, 230505 + ... + 520015.

It is an arithmetic number, because the mean of its divisors is an integer number (4924599120).

Almost surely, 2^108641897860 is an apocalyptic number.

108641897860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108641897860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118190378880).

108641897860 is an abundant number, since it is smaller than the sum of its proper divisors (127738859900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108641897860 is a wasteful number, since it uses less digits than its factorization.

108641897860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290196 (or 290194 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 108641897860 in words is "one hundred eight billion, six hundred forty-one million, eight hundred ninety-seven thousand, eight hundred sixty".