423593496506 has 4 divisors (see below), whose sum is σ = 635390244762. Its totient is φ = 211796748252.

The previous prime is 423593496493. The next prime is 423593496617. The reversal of 423593496506 is 605694395324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 400151130625 + 23442365881 = 632575^2 + 153109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105898374125 + ... + 105898374128.

Almost surely, 2^423593496506 is an apocalyptic number.

423593496506 is a deficient number, since it is larger than the sum of its proper divisors (211796748256).

423593496506 is a wasteful number, since it uses less digits than its factorization.

423593496506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211796748255.

The product of its (nonzero) digits is 20995200, while the sum is 56.

The spelling of 423593496506 in words is "four hundred twenty-three billion, five hundred ninety-three million, four hundred ninety-six thousand, five hundred six".