543157852109 has 2 divisors, whose sum is σ = 543157852110. Its totient is φ = 543157852108.

The previous prime is 543157852093. The next prime is 543157852121. The reversal of 543157852109 is 901258751345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427744776484 + 115413075625 = 654022^2 + 339725^2 .

It is a cyclic number.

It is not a de Polignac number, because 543157852109 - 2⁴ = 543157852093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543157852129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271578926054 + 271578926055.

It is an arithmetic number, because the mean of its divisors is an integer number (271578926055).

Almost surely, 2^543157852109 is an apocalyptic number.

It is an amenable number.

543157852109 is a deficient number, since it is larger than the sum of its proper divisors (1).

543157852109 is an equidigital number, since it uses as much as digits as its factorization.

543157852109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 543157852109 in words is "five hundred forty-three billion, one hundred fifty-seven million, eight hundred fifty-two thousand, one hundred nine".