543634213465 has 96 divisors (see below), whose sum is σ = 817473609504. Its totient is φ = 344803737600.

The previous prime is 543634213453. The next prime is 543634213477. The reversal of 543634213465 is 564312436345.

It is an interprime number because it is at equal distance from previous prime (543634213453) and next prime (543634213477).

It can be written as a sum of positive squares in 16 ways, for example, as 7958067264 + 535676146201 = 89208^2 + 731899^2 .

It is not a de Polignac number, because 543634213465 - 2¹⁹ = 543633689177 is a prime.

It is an unprimeable number.

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 in 95 ways as a sum of consecutive naturals, for example, 57626389 + ... + 57635821.

It is an arithmetic number, because the mean of its divisors is an integer number (8515350099).

Almost surely, 2^543634213465 is an apocalyptic number.

It is an amenable number.

543634213465 is a deficient number, since it is larger than the sum of its proper divisors (273839396039).

543634213465 is a wasteful number, since it uses less digits than its factorization.

543634213465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707 (or 9700 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 46.

The spelling of 543634213465 in words is "five hundred forty-three billion, six hundred thirty-four million, two hundred thirteen thousand, four hundred sixty-five".