457728245812 has 36 divisors (see below), whose sum is σ = 811901831076. Its totient is φ = 225797370240.

The previous prime is 457728245801. The next prime is 457728245813. The reversal of 457728245812 is 218542827754.

It can be written as a sum of positive squares in 2 ways, for example, as 399823523856 + 57904721956 = 632316^2 + 240634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457728245813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37265112 + ... + 37277392.

It is an arithmetic number, because the mean of its divisors is an integer number (22552828641).

Almost surely, 2^457728245812 is an apocalyptic number.

It is an amenable number.

457728245812 is a deficient number, since it is larger than the sum of its proper divisors (354173585264).

457728245812 is a wasteful number, since it uses less digits than its factorization.

457728245812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13936 (or 13855 counting only the distinct ones).

The product of its digits is 10035200, while the sum is 55.

The spelling of 457728245812 in words is "four hundred fifty-seven billion, seven hundred twenty-eight million, two hundred forty-five thousand, eight hundred twelve".