345521125543 has 32 divisors (see below), whose sum is σ = 401896385280. Its totient is φ = 293751360000.

The previous prime is 345521125511. The next prime is 345521125577.

345521125543 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 345521125543 - 2⁵ = 345521125511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345521125496 and 345521125505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345521125583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7089448 + ... + 7138018.

It is an arithmetic number, because the mean of its divisors is an integer number (12559262040).

Almost surely, 2^345521125543 is an apocalyptic number.

345521125543 is a deficient number, since it is larger than the sum of its proper divisors (56375259737).

345521125543 is a wasteful number, since it uses less digits than its factorization.

345521125543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49039.

The product of its digits is 360000, while the sum is 40.

The spelling of 345521125543 in words is "three hundred forty-five billion, five hundred twenty-one million, one hundred twenty-five thousand, five hundred forty-three".