13879966005 has 40 divisors (see below), whose sum is σ = 24890070744. Its totient is φ = 7399987200.

The previous prime is 13879965997. The next prime is 13879966049. The reversal of 13879966005 is 50066997831.

It can be written as a sum of positive squares in 4 ways, for example, as 4068271089 + 9811694916 = 63783^2 + 99054^2 .

It is not a de Polignac number, because 13879966005 - 2³ = 13879965997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1713565 + ... + 1721645.

Almost surely, 2^13879966005 is an apocalyptic number.

13879966005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13879966005 is a deficient number, since it is larger than the sum of its proper divisors (11010104739).

13879966005 is an equidigital number, since it uses as much as digits as its factorization.

13879966005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12339 (or 12330 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 13879966005 in words is "thirteen billion, eight hundred seventy-nine million, nine hundred sixty-six thousand, five".