225186128748 has 72 divisors (see below), whose sum is σ = 655660142592. Its totient is φ = 63832279392.

The previous prime is 225186128743. The next prime is 225186128759. The reversal of 225186128748 is 847821681522.

225186128748 is a `hidden beast` number, since 2 + 2 + 5 + 18 + 612 + 8 + 7 + 4 + 8 = 666.

225186128748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 225186128694 and 225186128703.

It is not an unprimeable number, because it can be changed into a prime (225186128743) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3486090 + ... + 3550097.

Almost surely, 2^225186128748 is an apocalyptic number.

225186128748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225186128748 is an abundant number, since it is smaller than the sum of its proper divisors (430474013844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225186128748 is a wasteful number, since it uses less digits than its factorization.

225186128748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036331 (or 7036326 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The spelling of 225186128748 in words is "two hundred twenty-five billion, one hundred eighty-six million, one hundred twenty-eight thousand, seven hundred forty-eight".