13440777205 has 16 divisors (see below), whose sum is σ = 16396361280. Its totient is φ = 10574860032.

The previous prime is 13440777193. The next prime is 13440777211. The reversal of 13440777205 is 50277704431.

It is a cyclic number.

It is not a de Polignac number, because 13440777205 - 2¹¹ = 13440775157 is a prime.

It is a super-2 number, since 2×13440777205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174957 + ... + 239773.

It is an arithmetic number, because the mean of its divisors is an integer number (1024772580).

Almost surely, 2^13440777205 is an apocalyptic number.

It is an amenable number.

13440777205 is a deficient number, since it is larger than the sum of its proper divisors (2955584075).

13440777205 is an equidigital number, since it uses as much as digits as its factorization.

13440777205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65508.

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 13440777205 in words is "thirteen billion, four hundred forty million, seven hundred seventy-seven thousand, two hundred five".