51644271127 has 8 divisors (see below), whose sum is σ = 54439079600. Its totient is φ = 48857131584.

The previous prime is 51644271071. The next prime is 51644271149. The reversal of 51644271127 is 72117244615.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51644271127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51644271127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51644271167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903398 + ... + 1930339.

It is an arithmetic number, because the mean of its divisors is an integer number (6804884950).

Almost surely, 2^51644271127 is an apocalyptic number.

51644271127 is a deficient number, since it is larger than the sum of its proper divisors (2794808473).

51644271127 is a wasteful number, since it uses less digits than its factorization.

51644271127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834465.

The product of its digits is 94080, while the sum is 40.

The spelling of 51644271127 in words is "fifty-one billion, six hundred forty-four million, two hundred seventy-one thousand, one hundred twenty-seven".