51328843771 has 2 divisors, whose sum is σ = 51328843772. Its totient is φ = 51328843770.

The previous prime is 51328843759. The next prime is 51328843789. The reversal of 51328843771 is 17734882315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51328843771 - 2³⁵ = 16969105403 is a prime.

It is not a weakly prime, because it can be changed into another prime (51328843171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25664421885 + 25664421886.

It is an arithmetic number, because the mean of its divisors is an integer number (25664421886).

Almost surely, 2^51328843771 is an apocalyptic number.

51328843771 is a deficient number, since it is larger than the sum of its proper divisors (1).

51328843771 is an equidigital number, since it uses as much as digits as its factorization.

51328843771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 49.

The spelling of 51328843771 in words is "fifty-one billion, three hundred twenty-eight million, eight hundred forty-three thousand, seven hundred seventy-one".