227676321281 has 2 divisors, whose sum is σ = 227676321282. Its totient is φ = 227676321280.

The previous prime is 227676321233. The next prime is 227676321319. The reversal of 227676321281 is 182123676722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150847568881 + 76828752400 = 388391^2 + 277180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227676321281 is a prime.

It is a super-2 number, since 2×227676321281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (227676321781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113838160640 + 113838160641.

It is an arithmetic number, because the mean of its divisors is an integer number (113838160641).

Almost surely, 2^227676321281 is an apocalyptic number.

It is an amenable number.

227676321281 is a deficient number, since it is larger than the sum of its proper divisors (1).

227676321281 is an equidigital number, since it uses as much as digits as its factorization.

227676321281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The spelling of 227676321281 in words is "two hundred twenty-seven billion, six hundred seventy-six million, three hundred twenty-one thousand, two hundred eighty-one".