3456520256543 has 8 divisors (see below), whose sum is σ = 3522084694128. Its totient is φ = 3390968673664.

The previous prime is 3456520256531. The next prime is 3456520256587.

It is a happy number.

3456520256543 is nontrivially palindromic in base 10.

3456520256543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3456520256543 - 2⁶ = 3456520256479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3456520256491 and 3456520256500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3456520256513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2669930 + ... + 3747207.

It is an arithmetic number, because the mean of its divisors is an integer number (440260586766).

Almost surely, 2^{3456520256543} is an apocalyptic number.

3456520256543 is a deficient number, since it is larger than the sum of its proper divisors (65564437585).

3456520256543 is a wasteful number, since it uses less digits than its factorization.

3456520256543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427353.

The product of its (nonzero) digits is 12960000, while the sum is 50.

The spelling of 3456520256543 in words is "three trillion, four hundred fifty-six billion, five hundred twenty million, two hundred fifty-six thousand, five hundred forty-three".