210963802249 has 2 divisors, whose sum is σ = 210963802250. Its totient is φ = 210963802248.

The previous prime is 210963802213. The next prime is 210963802253. The reversal of 210963802249 is 942208369012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210192907024 + 770895225 = 458468^2 + 27765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210963802249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210963802199 and 210963802208.

It is not a weakly prime, because it can be changed into another prime (210963802279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105481901124 + 105481901125.

It is an arithmetic number, because the mean of its divisors is an integer number (105481901125).

Almost surely, 2^210963802249 is an apocalyptic number.

It is an amenable number.

210963802249 is a deficient number, since it is larger than the sum of its proper divisors (1).

210963802249 is an equidigital number, since it uses as much as digits as its factorization.

210963802249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 210963802249 in words is "two hundred ten billion, nine hundred sixty-three million, eight hundred two thousand, two hundred forty-nine".