227126216857 has 4 divisors (see below), whose sum is σ = 227133960400. Its totient is φ = 227118473316.

The previous prime is 227126216797. The next prime is 227126216879. The reversal of 227126216857 is 758612621722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227126216857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 227126216857.

It is not an unprimeable number, because it can be changed into a prime (227126216887) 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 3 ways as a sum of consecutive naturals, for example, 3827607 + ... + 3886492.

It is an arithmetic number, because the mean of its divisors is an integer number (56783490100).

Almost surely, 2^227126216857 is an apocalyptic number.

It is an amenable number.

227126216857 is a deficient number, since it is larger than the sum of its proper divisors (7743543).

227126216857 is an equidigital number, since it uses as much as digits as its factorization.

227126216857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743542.

The product of its digits is 1128960, while the sum is 49.

The spelling of 227126216857 in words is "two hundred twenty-seven billion, one hundred twenty-six million, two hundred sixteen thousand, eight hundred fifty-seven".