51328843777 has 8 divisors (see below), whose sum is σ = 52256177280. Its totient is φ = 50403422160.

The previous prime is 51328843771. The next prime is 51328843789. The reversal of 51328843777 is 77734882315.

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 51328843777 - 2¹⁹ = 51328319489 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423738 + ... + 531235.

It is an arithmetic number, because the mean of its divisors is an integer number (6532022160).

It is a Proth number, since it is equal to 48951 ⋅ 2²⁰ + 1 and 48951 < 2²⁰.

Almost surely, 2^51328843777 is an apocalyptic number.

It is an amenable number.

51328843777 is a deficient number, since it is larger than the sum of its proper divisors (927333503).

51328843777 is an equidigital number, since it uses as much as digits as its factorization.

51328843777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955943.

The product of its digits is 7902720, while the sum is 55.

The spelling of 51328843777 in words is "fifty-one billion, three hundred twenty-eight million, eight hundred forty-three thousand, seven hundred seventy-seven".