227128945945 has 16 divisors (see below), whose sum is σ = 300276331200. Its totient is φ = 163549192000.

The previous prime is 227128945853. The next prime is 227128945987. The reversal of 227128945945 is 549549821722.

227128945945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 227128945945 - 2¹³ = 227128937753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227128945945.

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 15 ways as a sum of consecutive naturals, for example, 20438095 + ... + 20449204.

It is an arithmetic number, because the mean of its divisors is an integer number (18767270700).

Almost surely, 2^227128945945 is an apocalyptic number.

It is an amenable number.

227128945945 is a deficient number, since it is larger than the sum of its proper divisors (73147385255).

227128945945 is a wasteful number, since it uses less digits than its factorization.

227128945945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40887416.

The product of its digits is 14515200, while the sum is 58.

The spelling of 227128945945 in words is "two hundred twenty-seven billion, one hundred twenty-eight million, nine hundred forty-five thousand, nine hundred forty-five".