3861868806048 has 96 divisors (see below), whose sum is σ = 11065748541120. Its totient is φ = 1169547868160.

The previous prime is 3861868806011. The next prime is 3861868806053. The reversal of 3861868806048 is 8406088681683.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a self number, because there is not a number n which added to its sum of digits gives 3861868806048.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611668 + ... + 2845676.

It is an arithmetic number, because the mean of its divisors is an integer number (115268213970).

Almost surely, 2^{3861868806048} 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 3861868806048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5532874270560).

3861868806048 is an abundant number, since it is smaller than the sum of its proper divisors (7203879735072).

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

3861868806048 is a wasteful number, since it uses less digits than its factorization.

3861868806048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235670 (or 2235662 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 66.

The spelling of 3861868806048 in words is "three trillion, eight hundred sixty-one billion, eight hundred sixty-eight million, eight hundred six thousand, forty-eight".