503040645463 has 4 divisors (see below), whose sum is σ = 503049609568. Its totient is φ = 503031681360.

The previous prime is 503040645461. The next prime is 503040645469. The reversal of 503040645463 is 364546040305.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 503040645463 - 2¹ = 503040645461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503040645461) 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 3 ways as a sum of consecutive naturals, for example, 4397343 + ... + 4510288.

It is an arithmetic number, because the mean of its divisors is an integer number (125762402392).

Almost surely, 2^503040645463 is an apocalyptic number.

503040645463 is a deficient number, since it is larger than the sum of its proper divisors (8964105).

503040645463 is an equidigital number, since it uses as much as digits as its factorization.

503040645463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964104.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 503040645463 its reverse (364546040305), we get a palindrome (867586685768).

The spelling of 503040645463 in words is "five hundred three billion, forty million, six hundred forty-five thousand, four hundred sixty-three".