501472740220772 has 12 divisors (see below), whose sum is σ = 877628148917100. Its totient is φ = 250721840530176.

The previous prime is 501472740220759. The next prime is 501472740220817. The reversal of 501472740220772 is 277022047274105.

It can be written as a sum of positive squares in 2 ways, for example, as 206602849226596 + 294869890994176 = 14373686^2 + 17171776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 501472740220772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632317397 + ... + 3632455452.

It is an arithmetic number, because the mean of its divisors is an integer number (73135679076425).

Almost surely, 2^{501472740220772} is an apocalyptic number.

It is an amenable number.

501472740220772 is a deficient number, since it is larger than the sum of its proper divisors (376155408696328).

501472740220772 is a wasteful number, since it uses less digits than its factorization.

501472740220772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264790110 (or 7264790108 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 50.

Adding to 501472740220772 its reverse (277022047274105), we get a palindrome (778494787494877).

The spelling of 501472740220772 in words is "five hundred one trillion, four hundred seventy-two billion, seven hundred forty million, two hundred twenty thousand, seven hundred seventy-two".