3836805786 has 256 divisors, whose sum is σ = 10279249920. Its totient is φ = 1047720960.

The previous prime is 3836805767. The next prime is 3836805811. The reversal of 3836805786 is 6875086383.

It is a happy number.

3836805786 is a `hidden beast` number, since 3 + 8 + 3 + 68 + 0 + 578 + 6 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35857945 + ... + 35858051.

It is an arithmetic number, because the mean of its divisors is an integer number (40153320).

Almost surely, 2^3836805786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3836805786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5139624960).

3836805786 is an abundant number, since it is smaller than the sum of its proper divisors (6442444134).

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

3836805786 is a wasteful number, since it uses less digits than its factorization.

3836805786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 3836805786 is about 61941.9549739916. The cubic root of 3836805786 is about 1565.5127372335.

The spelling of 3836805786 in words is "three billion, eight hundred thirty-six million, eight hundred five thousand, seven hundred eighty-six".