51286770443 has 2 divisors, whose sum is σ = 51286770444. Its totient is φ = 51286770442.

The previous prime is 51286770421. The next prime is 51286770461. The reversal of 51286770443 is 34407768215.

51286770443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51286770443 - 2¹⁰ = 51286769419 is a prime.

It is not a weakly prime, because it can be changed into another prime (51286778443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25643385221 + 25643385222.

It is an arithmetic number, because the mean of its divisors is an integer number (25643385222).

Almost surely, 2^51286770443 is an apocalyptic number.

51286770443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51286770443 is an equidigital number, since it uses as much as digits as its factorization.

51286770443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 51286770443 in words is "fifty-one billion, two hundred eighty-six million, seven hundred seventy thousand, four hundred forty-three".