227294051681 has 2 divisors, whose sum is σ = 227294051682. Its totient is φ = 227294051680.

The previous prime is 227294051671. The next prime is 227294051701. The reversal of 227294051681 is 186150492722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159527549281 + 67766502400 = 399409^2 + 260320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227294051681 is a prime.

It is a super-2 number, since 2×227294051681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (227294051671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113647025840 + 113647025841.

It is an arithmetic number, because the mean of its divisors is an integer number (113647025841).

Almost surely, 2^227294051681 is an apocalyptic number.

It is an amenable number.

227294051681 is a deficient number, since it is larger than the sum of its proper divisors (1).

227294051681 is an equidigital number, since it uses as much as digits as its factorization.

227294051681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 227294051681 in words is "two hundred twenty-seven billion, two hundred ninety-four million, fifty-one thousand, six hundred eighty-one".