225849795698 has 18 divisors (see below), whose sum is σ = 343685986797. Its totient is φ = 111310883320.

The previous prime is 225849795697. The next prime is 225849795727. The reversal of 225849795698 is 896597948522.

It can be written as a sum of positive squares in 2 ways, for example, as 199252426129 + 26597369569 = 446377^2 + 163087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=336043.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225849795697) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47715740 + ... + 47720472.

Almost surely, 2^225849795698 is an apocalyptic number.

225849795698 is a deficient number, since it is larger than the sum of its proper divisors (117836191099).

225849795698 is an frugal number, since it uses more digits than its factorization.

225849795698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9610 (or 4806 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 74.

The spelling of 225849795698 in words is "two hundred twenty-five billion, eight hundred forty-nine million, seven hundred ninety-five thousand, six hundred ninety-eight".