4120686108 has 144 divisors (see below), whose sum is σ = 13467627264. Its totient is φ = 1070288640.

The previous prime is 4120686103. The next prime is 4120686121. The reversal of 4120686108 is 8016860214.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120686103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47316 + ... + 102372.

Almost surely, 2^4120686108 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 4120686108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6733813632).

4120686108 is an abundant number, since it is smaller than the sum of its proper divisors (9346941156).

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

4120686108 is a wasteful number, since it uses less digits than its factorization.

4120686108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55094 (or 55080 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 4120686108 is about 64192.5705046931. The cubic root of 4120686108 is about 1603.2079010377.

The spelling of 4120686108 in words is "four billion, one hundred twenty million, six hundred eighty-six thousand, one hundred eight".