51328843775 has 12 divisors (see below), whose sum is σ = 69433927224. Its totient is φ = 37330068000.

The previous prime is 51328843771. The next prime is 51328843789. The reversal of 51328843775 is 57734882315.

It is not a de Polignac number, because 51328843775 - 2² = 51328843771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51328843771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93324896 + ... + 93325445.

It is an arithmetic number, because the mean of its divisors is an integer number (5786160602).

Almost surely, 2^51328843775 is an apocalyptic number.

51328843775 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51328843775 is a deficient number, since it is larger than the sum of its proper divisors (18105083449).

51328843775 is a wasteful number, since it uses less digits than its factorization.

51328843775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186650362 (or 186650357 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 53.

The spelling of 51328843775 in words is "fifty-one billion, three hundred twenty-eight million, eight hundred forty-three thousand, seven hundred seventy-five".