496434385561 has 3 divisors (see below), whose sum is σ = 496435090143. Its totient is φ = 496433680980.

The previous prime is 496434385553. The next prime is 496434385567. The reversal of 496434385561 is 165583434694.

The square root of 496434385561 is 704581.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 471324813961 + 25109571600 = 686531^2 + 158460^2 .

It is not a de Polignac number, because 496434385561 - 2³ = 496434385553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 496434385496 and 496434385505.

It is not an unprimeable number, because it can be changed into a prime (496434385567) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 352291 + ... + 1056871.

It is an arithmetic number, because the mean of its divisors is an integer number (165478363381).

Almost surely, 2^496434385561 is an apocalyptic number.

496434385561 is the 704581-st square number.

496434385561 is the 352291-st centered octagonal number.

It is an amenable number.

496434385561 is a deficient number, since it is larger than the sum of its proper divisors (704582).

496434385561 is an frugal number, since it uses more digits than its factorization.

496434385561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409162 (or 704581 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 58.

The spelling of 496434385561 in words is "four hundred ninety-six billion, four hundred thirty-four million, three hundred eighty-five thousand, five hundred sixty-one".