503040646213 has 24 divisors (see below), whose sum is σ = 588046790520. Its totient is φ = 429061610880.

The previous prime is 503040646211. The next prime is 503040646247. The reversal of 503040646213 is 312646040305.

It can be written as a sum of positive squares in 4 ways, for example, as 117428211684 + 385612434529 = 342678^2 + 620977^2 .

It is not a de Polignac number, because 503040646213 - 2¹ = 503040646211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503040646211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11221023 + ... + 11265763.

It is an arithmetic number, because the mean of its divisors is an integer number (24501949605).

Almost surely, 2^503040646213 is an apocalyptic number.

It is an amenable number.

503040646213 is a deficient number, since it is larger than the sum of its proper divisors (85006144307).

503040646213 is a wasteful number, since it uses less digits than its factorization.

503040646213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45877 (or 45870 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 503040646213 its reverse (312646040305), we get a palindrome (815686686518).

The spelling of 503040646213 in words is "five hundred three billion, forty million, six hundred forty-six thousand, two hundred thirteen".