225742274738 has 18 divisors (see below), whose sum is σ = 341208175581. Its totient is φ = 112012751904.

The previous prime is 225742274713. The next prime is 225742274767. The reversal of 225742274738 is 837472247522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 148998316009 + 76743958729 = 386003^2 + 277027^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335963.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225742274738.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 93396506 + ... + 93398922.

Almost surely, 2^225742274738 is an apocalyptic number.

225742274738 is a deficient number, since it is larger than the sum of its proper divisors (115465900843).

225742274738 is an frugal number, since it uses more digits than its factorization.

225742274738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114 (or 2558 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 53.

The spelling of 225742274738 in words is "two hundred twenty-five billion, seven hundred forty-two million, two hundred seventy-four thousand, seven hundred thirty-eight".