7852871808 has 128 divisors (see below), whose sum is σ = 23265792000. Its totient is φ = 2607584256.

The previous prime is 7852871801. The next prime is 7852871821. The reversal of 7852871808 is 8081782587.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7852871801) 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, 925441 + ... + 933887.

It is an arithmetic number, because the mean of its divisors is an integer number (181764000).

Almost surely, 2^7852871808 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 7852871808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11632896000).

7852871808 is an abundant number, since it is smaller than the sum of its proper divisors (15412920192).

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

7852871808 is a wasteful number, since it uses less digits than its factorization.

7852871808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739 (or 8721 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 54.

The square root of 7852871808 is about 88616.4308015167. The cubic root of 7852871808 is about 1987.6633776696.

The spelling of 7852871808 in words is "seven billion, eight hundred fifty-two million, eight hundred seventy-one thousand, eight hundred eight".