212854773667 has 2 divisors, whose sum is σ = 212854773668. Its totient is φ = 212854773666.

The previous prime is 212854773601. The next prime is 212854773683. The reversal of 212854773667 is 766377458212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212854773667 is a prime.

It is not a weakly prime, because it can be changed into another prime (212854773367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106427386833 + 106427386834.

It is an arithmetic number, because the mean of its divisors is an integer number (106427386834).

Almost surely, 2^212854773667 is an apocalyptic number.

212854773667 is a deficient number, since it is larger than the sum of its proper divisors (1).

212854773667 is an equidigital number, since it uses as much as digits as its factorization.

212854773667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 58.

The spelling of 212854773667 in words is "two hundred twelve billion, eight hundred fifty-four million, seven hundred seventy-three thousand, six hundred sixty-seven".