5079204256681 has 3 divisors (see below), whose sum is σ = 5079206510391. Its totient is φ = 5079202002972.

The previous prime is 5079204256669. The next prime is 5079204256699. The reversal of 5079204256681 is 1866524029705.

The square root of 5079204256681 is 2253709.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1302560281 + 5077901696400 = 36091^2 + 2253420^2 .

It is not a de Polignac number, because 5079204256681 - 2⁵ = 5079204256649 is a prime.

It is a super-2 number, since 2×5079204256681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5079204253681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1126855 + ... + 3380563.

It is an arithmetic number, because the mean of its divisors is an integer number (1693068836797).

Almost surely, 2^{5079204256681} is an apocalyptic number.

5079204256681 is the 2253709-th square number.

5079204256681 is the 1126855-th centered octagonal number.

It is an amenable number.

5079204256681 is a deficient number, since it is larger than the sum of its proper divisors (2253710).

5079204256681 is an frugal number, since it uses more digits than its factorization.

5079204256681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507418 (or 2253709 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 5079204256681 in words is "five trillion, seventy-nine billion, two hundred four million, two hundred fifty-six thousand, six hundred eighty-one".