2179716338 has 6 divisors (see below), whose sum is σ = 3269673549. Its totient is φ = 1089825156.

The previous prime is 2179716317. The next prime is 2179716373. The reversal of 2179716338 is 8336179712.

It can be written as a sum of positive squares in 2 ways, for example, as 1917826849 + 261889489 = 43793^2 + 16183^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33013.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2179716292 and 2179716301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 49520 + ... + 82532.

Almost surely, 2^2179716338 is an apocalyptic number.

2179716338 is a deficient number, since it is larger than the sum of its proper divisors (1089957211).

2179716338 is an frugal number, since it uses more digits than its factorization.

2179716338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66028 (or 33015 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 2179716338 is about 46687.4323346230. The cubic root of 2179716338 is about 1296.5820149321.

The spelling of 2179716338 in words is "two billion, one hundred seventy-nine million, seven hundred sixteen thousand, three hundred thirty-eight".