51644641179 has 8 divisors (see below), whose sum is σ = 68881484880. Its totient is φ = 34418779136.

The previous prime is 51644641151. The next prime is 51644641187. The reversal of 51644641179 is 97114644615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51644641179 - 2⁷ = 51644641051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51644648179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2734434 + ... + 2753255.

It is an arithmetic number, because the mean of its divisors is an integer number (8610185610).

Almost surely, 2^51644641179 is an apocalyptic number.

51644641179 is a deficient number, since it is larger than the sum of its proper divisors (17236843701).

51644641179 is a wasteful number, since it uses less digits than its factorization.

51644641179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490829.

The product of its digits is 725760, while the sum is 48.

The spelling of 51644641179 in words is "fifty-one billion, six hundred forty-four million, six hundred forty-one thousand, one hundred seventy-nine".