2178319013 has 8 divisors (see below), whose sum is σ = 2356219488. Its totient is φ = 2001895344.

The previous prime is 2178318997. The next prime is 2178319037. The reversal of 2178319013 is 3109138712.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2178319013 - 2⁴ = 2178318997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178319813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366131 + ... + 372032.

It is an arithmetic number, because the mean of its divisors is an integer number (294527436).

Almost surely, 2^2178319013 is an apocalyptic number.

It is an amenable number.

2178319013 is a deficient number, since it is larger than the sum of its proper divisors (177900475).

2178319013 is a wasteful number, since it uses less digits than its factorization.

2178319013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738403.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2178319013 is about 46672.4652552230. The cubic root of 2178319013 is about 1296.3048942023.

The spelling of 2178319013 in words is "two billion, one hundred seventy-eight million, three hundred nineteen thousand, thirteen".