51617728341 has 24 divisors (see below), whose sum is σ = 78753948416. Its totient is φ = 32527293120.

The previous prime is 51617728291. The next prime is 51617728363. The reversal of 51617728341 is 14382771615.

51617728341 is a `hidden beast` number, since 5 + 1 + 617 + 7 + 28 + 3 + 4 + 1 = 666.

It is not a de Polignac number, because 51617728341 - 2⁶ = 51617728277 is a prime.

It is a super-2 number, since 2×51617728341² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51617728381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2139280 + ... + 2163273.

Almost surely, 2^51617728341 is an apocalyptic number.

It is an amenable number.

51617728341 is a deficient number, since it is larger than the sum of its proper divisors (27136220075).

51617728341 is a wasteful number, since it uses less digits than its factorization.

51617728341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302633 (or 4302630 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The spelling of 51617728341 in words is "fifty-one billion, six hundred seventeen million, seven hundred twenty-eight thousand, three hundred forty-one".