225398379698 has 18 divisors (see below), whose sum is σ = 339362184189. Its totient is φ = 112279220392.

The previous prime is 225398379653. The next prime is 225398379749. The reversal of 225398379698 is 896973893522.

225398379698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 208416901729 + 16981477969 = 456527^2 + 130313^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335707.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 261179615 + ... + 261180477.

Almost surely, 2^225398379698 is an apocalyptic number.

225398379698 is a deficient number, since it is larger than the sum of its proper divisors (113963804491).

225398379698 is an frugal number, since it uses more digits than its factorization.

225398379698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506 (or 1254 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 71.

The spelling of 225398379698 in words is "two hundred twenty-five billion, three hundred ninety-eight million, three hundred seventy-nine thousand, six hundred ninety-eight".