227858448409 has 2 divisors, whose sum is σ = 227858448410. Its totient is φ = 227858448408.

The previous prime is 227858448353. The next prime is 227858448421. The reversal of 227858448409 is 904844858722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162386432784 + 65472015625 = 402972^2 + 255875^2 .

It is a cyclic number.

It is not a de Polignac number, because 227858448409 - 2¹⁹ = 227857924121 is a prime.

It is a super-2 number, since 2×227858448409² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (227858443409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113929224204 + 113929224205.

It is an arithmetic number, because the mean of its divisors is an integer number (113929224205).

Almost surely, 2^227858448409 is an apocalyptic number.

It is an amenable number.

227858448409 is a deficient number, since it is larger than the sum of its proper divisors (1).

227858448409 is an equidigital number, since it uses as much as digits as its factorization.

227858448409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 227858448409 in words is "two hundred twenty-seven billion, eight hundred fifty-eight million, four hundred forty-eight thousand, four hundred nine".