3811783808 has 128 divisors (see below), whose sum is σ = 9203174400. Its totient is φ = 1537781760.

The previous prime is 3811783769. The next prime is 3811783831. The reversal of 3811783808 is 8083871183.

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

It is a super-4 number, since 4×3811783808⁴ (a number of 39 digits) contains 4444 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1025858 + ... + 1029566.

It is an arithmetic number, because the mean of its divisors is an integer number (71899800).

Almost surely, 2^3811783808 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 3811783808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4601587200).

3811783808 is an abundant number, since it is smaller than the sum of its proper divisors (5391390592).

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

3811783808 is a wasteful number, since it uses less digits than its factorization.

3811783808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 3811783808 is about 61739.6453504553. The cubic root of 3811783808 is about 1562.1021146074.

The spelling of 3811783808 in words is "three billion, eight hundred eleven million, seven hundred eighty-three thousand, eight hundred eight".