3878416756 has 6 divisors (see below), whose sum is σ = 6787229330. Its totient is φ = 1939208376.

The previous prime is 3878416753. The next prime is 3878416811. The reversal of 3878416756 is 6576148783.

It can be written as a sum of positive squares in only one way, i.e., 3465676900 + 412739856 = 58870^2 + 20316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3878416697 and 3878416706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878416753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484802091 + ... + 484802098.

Almost surely, 2^3878416756 is an apocalyptic number.

It is an amenable number.

3878416756 is a deficient number, since it is larger than the sum of its proper divisors (2908812574).

3878416756 is a wasteful number, since it uses less digits than its factorization.

3878416756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969604193 (or 969604191 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 3878416756 is about 62276.9359875709. The cubic root of 3878416756 is about 1571.1518392303.

The spelling of 3878416756 in words is "three billion, eight hundred seventy-eight million, four hundred sixteen thousand, seven hundred fifty-six".