508823579861 has 2 divisors, whose sum is σ = 508823579862. Its totient is φ = 508823579860.

The previous prime is 508823579857. The next prime is 508823579881. The reversal of 508823579861 is 168975328805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420558735025 + 88264844836 = 648505^2 + 297094^2 .

It is a cyclic number.

It is not a de Polignac number, because 508823579861 - 2² = 508823579857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 508823579794 and 508823579803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508823579881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254411789930 + 254411789931.

It is an arithmetic number, because the mean of its divisors is an integer number (254411789931).

Almost surely, 2^508823579861 is an apocalyptic number.

It is an amenable number.

508823579861 is a deficient number, since it is larger than the sum of its proper divisors (1).

508823579861 is an equidigital number, since it uses as much as digits as its factorization.

508823579861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29030400, while the sum is 62.

The spelling of 508823579861 in words is "five hundred eight billion, eight hundred twenty-three million, five hundred seventy-nine thousand, eight hundred sixty-one".