504793986991 has 16 divisors (see below), whose sum is σ = 582673927680. Its totient is φ = 428360882400.

The previous prime is 504793986989. The next prime is 504793987037. The reversal of 504793986991 is 199689397405.

It is a cyclic number.

It is not a de Polignac number, because 504793986991 - 2¹ = 504793986989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504793986991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504793986941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951541 + ... + 1383841.

It is an arithmetic number, because the mean of its divisors is an integer number (36417120480).

Almost surely, 2^504793986991 is an apocalyptic number.

504793986991 is a deficient number, since it is larger than the sum of its proper divisors (77879940689).

504793986991 is a wasteful number, since it uses less digits than its factorization.

504793986991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433974.

The product of its (nonzero) digits is 132269760, while the sum is 70.

The spelling of 504793986991 in words is "five hundred four billion, seven hundred ninety-three million, nine hundred eighty-six thousand, nine hundred ninety-one".