3878162449 has 16 divisors (see below), whose sum is σ = 4513180672. Its totient is φ = 3263804928.

The previous prime is 3878162423. The next prime is 3878162459. The reversal of 3878162449 is 9442618783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3878162449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3878162396 and 3878162405.

It is not an unprimeable number, because it can be changed into a prime (3878162459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96937 + ... + 130969.

It is an arithmetic number, because the mean of its divisors is an integer number (282073792).

Almost surely, 2^3878162449 is an apocalyptic number.

It is an amenable number.

3878162449 is a deficient number, since it is larger than the sum of its proper divisors (635018223).

3878162449 is a wasteful number, since it uses less digits than its factorization.

3878162449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34336.

The product of its digits is 2322432, while the sum is 52.

The square root of 3878162449 is about 62274.8942110703. The cubic root of 3878162449 is about 1571.1174984439.

The spelling of 3878162449 in words is "three billion, eight hundred seventy-eight million, one hundred sixty-two thousand, four hundred forty-nine".