2705511706321 has 4 divisors (see below), whose sum is σ = 2705696359732. Its totient is φ = 2705327052912.

The previous prime is 2705511706291. The next prime is 2705511706369. The reversal of 2705511706321 is 1236071155072.

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 2306416278721 + 399095427600 = 1518689^2 + 631740^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705511706321 - 2³³ = 2696921771729 is a prime.

It is a super-4 number, since 4×2705511706321⁴ (a number of 51 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2705511716321) 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, 92304726 + ... + 92334031.

It is an arithmetic number, because the mean of its divisors is an integer number (676424089933).

Almost surely, 2^{2705511706321} is an apocalyptic number.

It is an amenable number.

2705511706321 is a deficient number, since it is larger than the sum of its proper divisors (184653411).

2705511706321 is a wasteful number, since it uses less digits than its factorization.

2705511706321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184653410.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 2705511706321 in words is "two trillion, seven hundred five billion, five hundred eleven million, seven hundred six thousand, three hundred twenty-one".