506648467189 has 2 divisors, whose sum is σ = 506648467190. Its totient is φ = 506648467188.

The previous prime is 506648467183. The next prime is 506648467201. The reversal of 506648467189 is 981764846605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406138544100 + 100509923089 = 637290^2 + 317033^2 .

It is a cyclic number.

It is not a de Polignac number, because 506648467189 - 2¹⁵ = 506648434421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 506648467189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506648467183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253324233594 + 253324233595.

It is an arithmetic number, because the mean of its divisors is an integer number (253324233595).

Almost surely, 2^506648467189 is an apocalyptic number.

It is an amenable number.

506648467189 is a deficient number, since it is larger than the sum of its proper divisors (1).

506648467189 is an equidigital number, since it uses as much as digits as its factorization.

506648467189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 506648467189 in words is "five hundred six billion, six hundred forty-eight million, four hundred sixty-seven thousand, one hundred eighty-nine".