549668770543 has 2 divisors, whose sum is σ = 549668770544. Its totient is φ = 549668770542.

The previous prime is 549668770507. The next prime is 549668770561. The reversal of 549668770543 is 345077866945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549668770543 - 2³⁷ = 412229817071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549668770843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274834385271 + 274834385272.

It is an arithmetic number, because the mean of its divisors is an integer number (274834385272).

Almost surely, 2^549668770543 is an apocalyptic number.

549668770543 is a deficient number, since it is larger than the sum of its proper divisors (1).

549668770543 is an equidigital number, since it uses as much as digits as its factorization.

549668770543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 152409600, while the sum is 64.

The spelling of 549668770543 in words is "five hundred forty-nine billion, six hundred sixty-eight million, seven hundred seventy thousand, five hundred forty-three".