211454280839 has 2 divisors, whose sum is σ = 211454280840. Its totient is φ = 211454280838.

The previous prime is 211454280811. The next prime is 211454280911. The reversal of 211454280839 is 938082454112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211454280839 - 2³⁶ = 142734804103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211454280793 and 211454280802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211454280539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105727140419 + 105727140420.

It is an arithmetic number, because the mean of its divisors is an integer number (105727140420).

Almost surely, 2^211454280839 is an apocalyptic number.

211454280839 is a deficient number, since it is larger than the sum of its proper divisors (1).

211454280839 is an equidigital number, since it uses as much as digits as its factorization.

211454280839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 211454280839 in words is "two hundred eleven billion, four hundred fifty-four million, two hundred eighty thousand, eight hundred thirty-nine".