2706378321 has 16 divisors (see below), whose sum is σ = 3672126720. Its totient is φ = 1772482320.

The previous prime is 2706378319. The next prime is 2706378343. The reversal of 2706378321 is 1238736072.

It is not a de Polignac number, because 2706378321 - 2¹ = 2706378319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2706378321.

It is not an unprimeable number, because it can be changed into a prime (2706378361) 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, 316326 + ... + 324768.

It is an arithmetic number, because the mean of its divisors is an integer number (229507920).

Almost surely, 2^2706378321 is an apocalyptic number.

It is an amenable number.

2706378321 is a deficient number, since it is larger than the sum of its proper divisors (965748399).

2706378321 is a wasteful number, since it uses less digits than its factorization.

2706378321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 2706378321 is about 52022.8634448355. The cubic root of 2706378321 is about 1393.5722893905.

The spelling of 2706378321 in words is "two billion, seven hundred six million, three hundred seventy-eight thousand, three hundred twenty-one".