227970915857 has 2 divisors, whose sum is σ = 227970915858. Its totient is φ = 227970915856.

The previous prime is 227970915839. The next prime is 227970915863. The reversal of 227970915857 is 758519079722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209474643856 + 18496272001 = 457684^2 + 136001^2 .

It is a cyclic number.

It is not a de Polignac number, because 227970915857 - 2¹⁰ = 227970914833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227970915857.

It is not a weakly prime, because it can be changed into another prime (227970915817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113985457928 + 113985457929.

It is an arithmetic number, because the mean of its divisors is an integer number (113985457929).

Almost surely, 2^227970915857 is an apocalyptic number.

It is an amenable number.

227970915857 is a deficient number, since it is larger than the sum of its proper divisors (1).

227970915857 is an equidigital number, since it uses as much as digits as its factorization.

227970915857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22226400, while the sum is 62.

The spelling of 227970915857 in words is "two hundred twenty-seven billion, nine hundred seventy million, nine hundred fifteen thousand, eight hundred fifty-seven".