500511243623623 has 2 divisors, whose sum is σ = 500511243623624. Its totient is φ = 500511243623622.

The previous prime is 500511243623617. The next prime is 500511243623681. The reversal of 500511243623623 is 326326342115005.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500511243623623 is a prime.

It is a super-2 number, since 2×500511243623623² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 500511243623623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500511243623023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250255621811811 + 250255621811812.

It is an arithmetic number, because the mean of its divisors is an integer number (250255621811812).

Almost surely, 2^{500511243623623} is an apocalyptic number.

500511243623623 is a deficient number, since it is larger than the sum of its proper divisors (1).

500511243623623 is an equidigital number, since it uses as much as digits as its factorization.

500511243623623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 43.

Adding to 500511243623623 its reverse (326326342115005), we get a palindrome (826837585738628).

The spelling of 500511243623623 in words is "five hundred trillion, five hundred eleven billion, two hundred forty-three million, six hundred twenty-three thousand, six hundred twenty-three".