506556641028679 has 2 divisors, whose sum is σ = 506556641028680. Its totient is φ = 506556641028678.

The previous prime is 506556641028643. The next prime is 506556641028797. The reversal of 506556641028679 is 976820146655605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506556641028679 - 2³⁹ = 506006885214791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506556641020679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253278320514339 + 253278320514340.

It is an arithmetic number, because the mean of its divisors is an integer number (253278320514340).

Almost surely, 2^{506556641028679} is an apocalyptic number.

506556641028679 is a deficient number, since it is larger than the sum of its proper divisors (1).

506556641028679 is an equidigital number, since it uses as much as digits as its factorization.

506556641028679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184000, while the sum is 70.

The spelling of 506556641028679 in words is "five hundred six trillion, five hundred fifty-six billion, six hundred forty-one million, twenty-eight thousand, six hundred seventy-nine".