211414351549 has 2 divisors, whose sum is σ = 211414351550. Its totient is φ = 211414351548.

The previous prime is 211414351523. The next prime is 211414351609. The reversal of 211414351549 is 945153414112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120213371524 + 91200980025 = 346718^2 + 301995^2 .

It is a cyclic number.

It is not a de Polignac number, because 211414351549 - 2²⁷ = 211280133821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211414351849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105707175774 + 105707175775.

It is an arithmetic number, because the mean of its divisors is an integer number (105707175775).

Almost surely, 2^211414351549 is an apocalyptic number.

It is an amenable number.

211414351549 is a deficient number, since it is larger than the sum of its proper divisors (1).

211414351549 is an equidigital number, since it uses as much as digits as its factorization.

211414351549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The spelling of 211414351549 in words is "two hundred eleven billion, four hundred fourteen million, three hundred fifty-one thousand, five hundred forty-nine".