13838227405 has 8 divisors (see below), whose sum is σ = 16613309592. Its totient is φ = 11065624128.

The previous prime is 13838227367. The next prime is 13838227457. The reversal of 13838227405 is 50472283831.

It can be written as a sum of positive squares in 4 ways, for example, as 4669398889 + 9168828516 = 68333^2 + 95754^2 .

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 13838227405 - 2⁹ = 13838226893 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 607422 + ... + 629791.

It is an arithmetic number, because the mean of its divisors is an integer number (2076663699).

Almost surely, 2^13838227405 is an apocalyptic number.

It is an amenable number.

13838227405 is a deficient number, since it is larger than the sum of its proper divisors (2775082187).

13838227405 is a wasteful number, since it uses less digits than its factorization.

13838227405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239455.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 13838227405 in words is "thirteen billion, eight hundred thirty-eight million, two hundred twenty-seven thousand, four hundred five".