3861867357108 has 144 divisors (see below), whose sum is σ = 10289064554496. Its totient is φ = 1218915846720.

The previous prime is 3861867357001. The next prime is 3861867357133. The reversal of 3861867357108 is 8017537681683.

3861867357108 is a `hidden beast` number, since 3 + 8 + 618 + 6 + 7 + 3 + 5 + 7 + 1 + 0 + 8 = 666.

3861867357108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290555943 + ... + 290569233.

It is an arithmetic number, because the mean of its divisors is an integer number (71451837184).

Almost surely, 2^{3861867357108} 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 3861867357108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5144532277248).

3861867357108 is an abundant number, since it is smaller than the sum of its proper divisors (6427197197388).

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

3861867357108 is a wasteful number, since it uses less digits than its factorization.

3861867357108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834 (or 16829 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 3861867357108 in words is "three trillion, eight hundred sixty-one billion, eight hundred sixty-seven million, three hundred fifty-seven thousand, one hundred eight".