500345243551 has 4 divisors (see below), whose sum is σ = 500350021600. Its totient is φ = 500340465504.

The previous prime is 500345243537. The next prime is 500345243561. The reversal of 500345243551 is 155342543005.

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 500345243551 - 2¹⁷ = 500345112479 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 500345243551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500345243561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228346 + ... + 2442583.

It is an arithmetic number, because the mean of its divisors is an integer number (125087505400).

Almost surely, 2^500345243551 is an apocalyptic number.

500345243551 is a deficient number, since it is larger than the sum of its proper divisors (4778049).

500345243551 is a wasteful number, since it uses less digits than its factorization.

500345243551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778048.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 500345243551 its reverse (155342543005), we get a palindrome (655687786556).

The spelling of 500345243551 in words is "five hundred billion, three hundred forty-five million, two hundred forty-three thousand, five hundred fifty-one".