505761726049 has 4 divisors (see below), whose sum is σ = 527751366336. Its totient is φ = 483772085764.

The previous prime is 505761726013. The next prime is 505761726089. The reversal of 505761726049 is 940627167505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505761726049 - 2⁷ = 505761725921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505761725987 and 505761726005.

It is not an unprimeable number, because it can be changed into a prime (505761726089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10994820109 + ... + 10994820154.

It is an arithmetic number, because the mean of its divisors is an integer number (131937841584).

Almost surely, 2^505761726049 is an apocalyptic number.

It is an amenable number.

505761726049 is a deficient number, since it is larger than the sum of its proper divisors (21989640287).

505761726049 is a wasteful number, since it uses less digits than its factorization.

505761726049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21989640286.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 505761726049 in words is "five hundred five billion, seven hundred sixty-one million, seven hundred twenty-six thousand, forty-nine".