3840771816 has 160 divisors (see below), whose sum is σ = 12352919040. Its totient is φ = 1092154752.

The previous prime is 3840771811. The next prime is 3840771859. The reversal of 3840771816 is 6181770483.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3840771811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1009630 + ... + 1013426.

It is an arithmetic number, because the mean of its divisors is an integer number (77205744).

Almost surely, 2^3840771816 is an apocalyptic number.

3840771816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3840771816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6176459520).

3840771816 is an abundant number, since it is smaller than the sum of its proper divisors (8512147224).

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

3840771816 is a wasteful number, since it uses less digits than its factorization.

3840771816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 3840771816 is about 61973.9607899963. The cubic root of 3840771816 is about 1566.0519646296.

The spelling of 3840771816 in words is "three billion, eight hundred forty million, seven hundred seventy-one thousand, eight hundred sixteen".