504745728722 has 4 divisors (see below), whose sum is σ = 757118593086. Its totient is φ = 252372864360.

The previous prime is 504745728719. The next prime is 504745728727. The reversal of 504745728722 is 227827547405.

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., 504396823681 + 348905041 = 710209^2 + 18679^2 .

It is not an unprimeable number, because it can be changed into a prime (504745728727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126186432179 + ... + 126186432182.

Almost surely, 2^504745728722 is an apocalyptic number.

504745728722 is a deficient number, since it is larger than the sum of its proper divisors (252372864364).

504745728722 is a wasteful number, since it uses less digits than its factorization.

504745728722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252372864363.

The product of its (nonzero) digits is 8780800, while the sum is 53.

The spelling of 504745728722 in words is "five hundred four billion, seven hundred forty-five million, seven hundred twenty-eight thousand, seven hundred twenty-two".