681075108 has 288 divisors, whose sum is σ = 2182561920. Its totient is φ = 182891520.

The previous prime is 681075089. The next prime is 681075113. The reversal of 681075108 is 801570186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9329760 + ... + 9329832.

It is an arithmetic number, because the mean of its divisors is an integer number (7578340).

Almost surely, 2^681075108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681075108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091280960).

681075108 is an abundant number, since it is smaller than the sum of its proper divisors (1501486812).

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

681075108 is a wasteful number, since it uses less digits than its factorization.

681075108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 681075108 is about 26097.4157341297. The cubic root of 681075108 is about 879.8291283250.

It can be divided in two parts, 6810 and 75108, that added together give a palindrome (81918).

The spelling of 681075108 in words is "six hundred eighty-one million, seventy-five thousand, one hundred eight".