543420431405 has 8 divisors (see below), whose sum is σ = 658087128600. Its totient is φ = 430747937856.

The previous prime is 543420431363. The next prime is 543420431413. The reversal of 543420431405 is 504134024345.

It can be written as a sum of positive squares in 4 ways, for example, as 201638717764 + 341781713641 = 449042^2 + 584621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 543420431405 - 2¹⁶ = 543420365869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498550310 + ... + 498551399.

It is an arithmetic number, because the mean of its divisors is an integer number (82260891075).

Almost surely, 2^543420431405 is an apocalyptic number.

It is an amenable number.

543420431405 is a deficient number, since it is larger than the sum of its proper divisors (114666697195).

543420431405 is a wasteful number, since it uses less digits than its factorization.

543420431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997101823.

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 543420431405 in words is "five hundred forty-three billion, four hundred twenty million, four hundred thirty-one thousand, four hundred five".