3851867888 has 80 divisors (see below), whose sum is σ = 8684203104. Its totient is φ = 1635655680.

The previous prime is 3851867881. The next prime is 3851867897. The reversal of 3851867888 is 8887681583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3851867888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3851867881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405206 + ... + 414602.

Almost surely, 2^3851867888 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 3851867888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4342101552).

3851867888 is an abundant number, since it is smaller than the sum of its proper divisors (4832335216).

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

3851867888 is a wasteful number, since it uses less digits than its factorization.

3851867888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570 (or 9564 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 62.

The square root of 3851867888 is about 62063.4182751804. The cubic root of 3851867888 is about 1567.5586338439.

The spelling of 3851867888 in words is "three billion, eight hundred fifty-one million, eight hundred sixty-seven thousand, eight hundred eighty-eight".