3782378205 has 24 divisors (see below), whose sum is σ = 6558828120. Its totient is φ = 2016435840.

The previous prime is 3782378183. The next prime is 3782378233. The reversal of 3782378205 is 5028732873.

3782378205 is a `hidden beast` number, since 3 + 78 + 2 + 378 + 205 = 666.

3782378205 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1483559289 + 2298818916 = 38517^2 + 47946^2 .

It is not a de Polignac number, because 3782378205 - 2¹² = 3782374109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101911 + ... + 133979.

It is an arithmetic number, because the mean of its divisors is an integer number (273284505).

Almost surely, 2^3782378205 is an apocalyptic number.

It is an amenable number.

3782378205 is a deficient number, since it is larger than the sum of its proper divisors (2776449915).

3782378205 is a wasteful number, since it uses less digits than its factorization.

3782378205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34701 (or 34698 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 3782378205 is about 61501.0423082406. The cubic root of 3782378205 is about 1558.0748503058.

The spelling of 3782378205 in words is "three billion, seven hundred eighty-two million, three hundred seventy-eight thousand, two hundred five".