211927468297 has 2 divisors, whose sum is σ = 211927468298. Its totient is φ = 211927468296.

The previous prime is 211927468289. The next prime is 211927468307. The reversal of 211927468297 is 792864729112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187849429056 + 24078039241 = 433416^2 + 155171^2 .

It is a cyclic number.

It is not a de Polignac number, because 211927468297 - 2³ = 211927468289 is a prime.

It is not a weakly prime, because it can be changed into another prime (211927468397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105963734148 + 105963734149.

It is an arithmetic number, because the mean of its divisors is an integer number (105963734149).

Almost surely, 2^211927468297 is an apocalyptic number.

It is an amenable number.

211927468297 is a deficient number, since it is larger than the sum of its proper divisors (1).

211927468297 is an equidigital number, since it uses as much as digits as its factorization.

211927468297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The spelling of 211927468297 in words is "two hundred eleven billion, nine hundred twenty-seven million, four hundred sixty-eight thousand, two hundred ninety-seven".