212702794949 has 2 divisors, whose sum is σ = 212702794950. Its totient is φ = 212702794948.

The previous prime is 212702794877. The next prime is 212702794951. The reversal of 212702794949 is 949497207212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206495718724 + 6207076225 = 454418^2 + 78785^2 .

It is a cyclic number.

It is not a de Polignac number, because 212702794949 - 2⁸ = 212702794693 is a prime.

Together with 212702794951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212702794894 and 212702794903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212702794349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106351397474 + 106351397475.

It is an arithmetic number, because the mean of its divisors is an integer number (106351397475).

Almost surely, 2^212702794949 is an apocalyptic number.

It is an amenable number.

212702794949 is a deficient number, since it is larger than the sum of its proper divisors (1).

212702794949 is an equidigital number, since it uses as much as digits as its factorization.

212702794949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 212702794949 in words is "two hundred twelve billion, seven hundred two million, seven hundred ninety-four thousand, nine hundred forty-nine".