3457520257543 has 24 divisors (see below), whose sum is σ = 4138382833200. Its totient is φ = 2875086910080.

The previous prime is 3457520257519. The next prime is 3457520257547.

3457520257543 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3457520257543 - 2²⁹ = 3456983386631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3457520257547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25863046 + ... + 25996387.

It is an arithmetic number, because the mean of its divisors is an integer number (172432618050).

Almost surely, 2^{3457520257543} is an apocalyptic number.

3457520257543 is a deficient number, since it is larger than the sum of its proper divisors (680862575657).

3457520257543 is a wasteful number, since it uses less digits than its factorization.

3457520257543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51859503 (or 51859492 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 52.

The spelling of 3457520257543 in words is "three trillion, four hundred fifty-seven billion, five hundred twenty million, two hundred fifty-seven thousand, five hundred forty-three".