3278378113 has 4 divisors (see below), whose sum is σ = 3281335380. Its totient is φ = 3275420848.

The previous prime is 3278378099. The next prime is 3278378119. The reversal of 3278378113 is 3118738723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3118738723 = 17 ⋅183455219.

It can be written as a sum of positive squares in 2 ways, for example, as 105534529 + 3172843584 = 10273^2 + 56328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3278378113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3278378113.

It is not an unprimeable number, because it can be changed into a prime (3278378119) 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 3 ways as a sum of consecutive naturals, for example, 1476970 + ... + 1479187.

It is an arithmetic number, because the mean of its divisors is an integer number (820333845).

Almost surely, 2^3278378113 is an apocalyptic number.

It is an amenable number.

3278378113 is a deficient number, since it is larger than the sum of its proper divisors (2957267).

3278378113 is a wasteful number, since it uses less digits than its factorization.

3278378113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957266.

The product of its digits is 169344, while the sum is 43.

The square root of 3278378113 is about 57257.1228145460. The cubic root of 3278378113 is about 1485.5468309257.

The spelling of 3278378113 in words is "three billion, two hundred seventy-eight million, three hundred seventy-eight thousand, one hundred thirteen".