13888837705 has 4 divisors (see below), whose sum is σ = 16666605252. Its totient is φ = 11111070160.

The previous prime is 13888837691. The next prime is 13888837757. The reversal of 13888837705 is 50773888831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6361019536 + 7527818169 = 79756^2 + 86763^2 .

It is not a de Polignac number, because 13888837705 - 2¹⁷ = 13888706633 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13888837705.

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 3 ways as a sum of consecutive naturals, for example, 1388883766 + ... + 1388883775.

It is an arithmetic number, because the mean of its divisors is an integer number (4166651313).

Almost surely, 2^13888837705 is an apocalyptic number.

It is an amenable number.

13888837705 is a deficient number, since it is larger than the sum of its proper divisors (2777767547).

13888837705 is an equidigital number, since it uses as much as digits as its factorization.

13888837705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777767546.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 13888837705 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred thirty-seven thousand, seven hundred five".