543454404454345 has 4 divisors (see below), whose sum is σ = 652145285345220. Its totient is φ = 434763523563472.

The previous prime is 543454404454331. The next prime is 543454404454399.

543454404454345 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108637824164809 + 434816580289536 = 10422947^2 + 20852256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543454404454345 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 543454404454345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54345440445430 + ... + 54345440445439.

It is an arithmetic number, because the mean of its divisors is an integer number (163036321336305).

Almost surely, 2^{543454404454345} is an apocalyptic number.

It is an amenable number.

543454404454345 is a deficient number, since it is larger than the sum of its proper divisors (108690880890875).

543454404454345 is a wasteful number, since it uses less digits than its factorization.

543454404454345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108690880890874.

The product of its (nonzero) digits is 368640000, while the sum is 58.

It can be divided in two parts, 54345440 and 4454345, that added together give a palindrome (58799785).

The spelling of 543454404454345 in words is "five hundred forty-three trillion, four hundred fifty-four billion, four hundred four million, four hundred fifty-four thousand, three hundred forty-five".