51726822228 has 36 divisors (see below), whose sum is σ = 130765808628. Its totient is φ = 17240705280.

The previous prime is 51726822227. The next prime is 51726822229. The reversal of 51726822228 is 82222862715.

It is an interprime number because it is at equal distance from previous prime (51726822227) and next prime (51726822229).

It can be written as a sum of positive squares in 2 ways, for example, as 23587430724 + 28139391504 = 153582^2 + 167748^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×51726822228² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51726822223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376758 + ... + 495378.

It is an arithmetic number, because the mean of its divisors is an integer number (3632383573).

Almost surely, 2^51726822228 is an apocalyptic number.

It is an amenable number.

51726822228 is an abundant number, since it is smaller than the sum of its proper divisors (79038986400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51726822228 is a wasteful number, since it uses less digits than its factorization.

51726822228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130744 (or 130739 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 51726822228 in words is "fifty-one billion, seven hundred twenty-six million, eight hundred twenty-two thousand, two hundred twenty-eight".