2705888716121 has 4 divisors (see below), whose sum is σ = 2763460816512. Its totient is φ = 2648316615732.

The previous prime is 2705888716103. The next prime is 2705888716147. The reversal of 2705888716121 is 1216178885072.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2705888716121 - 2³⁰ = 2704814974297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2705888716171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28786050125 + ... + 28786050218.

It is an arithmetic number, because the mean of its divisors is an integer number (690865204128).

Almost surely, 2^{2705888716121} is an apocalyptic number.

It is an amenable number.

2705888716121 is a deficient number, since it is larger than the sum of its proper divisors (57572100391).

2705888716121 is an equidigital number, since it uses as much as digits as its factorization.

2705888716121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57572100390.

The product of its (nonzero) digits is 3010560, while the sum is 56.

The spelling of 2705888716121 in words is "two trillion, seven hundred five billion, eight hundred eighty-eight million, seven hundred sixteen thousand, one hundred twenty-one".