227028620681 has 2 divisors, whose sum is σ = 227028620682. Its totient is φ = 227028620680.

The previous prime is 227028620669. The next prime is 227028620713. The reversal of 227028620681 is 186026820722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163834705225 + 63193915456 = 404765^2 + 251384^2 .

It is a cyclic number.

It is not a de Polignac number, because 227028620681 - 2³⁰ = 225954878857 is a prime.

It is a super-2 number, since 2×227028620681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (227028620281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113514310340 + 113514310341.

It is an arithmetic number, because the mean of its divisors is an integer number (113514310341).

Almost surely, 2^227028620681 is an apocalyptic number.

It is an amenable number.

227028620681 is a deficient number, since it is larger than the sum of its proper divisors (1).

227028620681 is an equidigital number, since it uses as much as digits as its factorization.

227028620681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 227028620681 in words is "two hundred twenty-seven billion, twenty-eight million, six hundred twenty thousand, six hundred eighty-one".