506458723922 has 18 divisors (see below), whose sum is σ = 762140098629. Its totient is φ = 252414650400.

The previous prime is 506458723913. The next prime is 506458723933. The reversal of 506458723922 is 229327854605.

It can be written as a sum of positive squares in 2 ways, for example, as 273875335561 + 232583388361 = 523331^2 + 482269^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=503219.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 421696922 + ... + 421698122.

Almost surely, 2^506458723922 is an apocalyptic number.

506458723922 is a deficient number, since it is larger than the sum of its proper divisors (255681374707).

506458723922 is an frugal number, since it uses more digits than its factorization.

506458723922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 506458723922 in words is "five hundred six billion, four hundred fifty-eight million, seven hundred twenty-three thousand, nine hundred twenty-two".