227197315872 has 54 divisors (see below), whose sum is σ = 646115371083. Its totient is φ = 75729742272.

The previous prime is 227197315871. The next prime is 227197315883. The reversal of 227197315872 is 278513791722.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

227197315872 is a `hidden beast` number, since 2 + 27 + 1 + 9 + 7 + 31 + 587 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113598657936 + 113598657936 = 337044^2 + 337044^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337044.

It is not an unprimeable number, because it can be changed into a prime (227197315871) by changing a digit.

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, 8075013 + ... + 8103099.

Almost surely, 2^227197315872 is an apocalyptic number.

It is an amenable number.

227197315872 is an abundant number, since it is smaller than the sum of its proper divisors (418918055211).

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

227197315872 is an frugal number, since it uses more digits than its factorization.

227197315872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56190 (or 28092 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The spelling of 227197315872 in words is "two hundred twenty-seven billion, one hundred ninety-seven million, three hundred fifteen thousand, eight hundred seventy-two".