506490620779 has 48 divisors (see below), whose sum is σ = 605855325600. Its totient is φ = 420566952960.

The previous prime is 506490620773. The next prime is 506490620803. The reversal of 506490620779 is 977026094605.

It is not a de Polignac number, because 506490620779 - 2⁹ = 506490620267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506490620773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126022032 + ... + 126026050.

It is an arithmetic number, because the mean of its divisors is an integer number (12621985950).

Almost surely, 2^506490620779 is an apocalyptic number.

506490620779 is a deficient number, since it is larger than the sum of its proper divisors (99364704821).

506490620779 is a wasteful number, since it uses less digits than its factorization.

506490620779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876 (or 4865 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 506490620779 in words is "five hundred six billion, four hundred ninety million, six hundred twenty thousand, seven hundred seventy-nine".