3778013844 has 36 divisors (see below), whose sum is σ = 10418160480. Its totient is φ = 1144852560.

The previous prime is 3778013843. The next prime is 3778013849. The reversal of 3778013844 is 4483108773.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3778013844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778013843) 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 11 ways as a sum of consecutive naturals, for example, 4769824 + ... + 4770615.

Almost surely, 2^3778013844 is an apocalyptic number.

It is an amenable number.

3778013844 is an abundant number, since it is smaller than the sum of its proper divisors (6640146636).

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

3778013844 is a wasteful number, since it uses less digits than its factorization.

3778013844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9540460 (or 9540455 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 3778013844 is about 61465.5500585491. The cubic root of 3778013844 is about 1557.4753493346.

The spelling of 3778013844 in words is "three billion, seven hundred seventy-eight million, thirteen thousand, eight hundred forty-four".