3806831257768 has 96 divisors (see below), whose sum is σ = 9060121974240. Its totient is φ = 1482833278080.

The previous prime is 3806831257763. The next prime is 3806831257813. The reversal of 3806831257768 is 8677521386083.

It is not an unprimeable number, because it can be changed into a prime (3806831257763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18686071 + ... + 18888697.

It is an arithmetic number, because the mean of its divisors is an integer number (94376270565).

Almost surely, 2^{3806831257768} 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 3806831257768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4530060987120).

3806831257768 is an abundant number, since it is smaller than the sum of its proper divisors (5253290716472).

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

3806831257768 is a wasteful number, since it uses less digits than its factorization.

3806831257768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207015 (or 207004 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 3806831257768 in words is "three trillion, eight hundred six billion, eight hundred thirty-one million, two hundred fifty-seven thousand, seven hundred sixty-eight".