345744727447543 has 32 divisors (see below), whose sum is σ = 365306944757760. Its totient is φ = 326577394281600.

The previous prime is 345744727447523. The next prime is 345744727447601.

345744727447543 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 345744727447543 - 2²¹ = 345744725350391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345744727447523) 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, 12615184146 + ... + 12615211552.

It is an arithmetic number, because the mean of its divisors is an integer number (11415842023680).

Almost surely, 2^{345744727447543} is an apocalyptic number.

345744727447543 is a deficient number, since it is larger than the sum of its proper divisors (19562217310217).

345744727447543 is a wasteful number, since it uses less digits than its factorization.

345744727447543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41607.

The product of its digits is 4425523200, while the sum is 70.

The spelling of 345744727447543 in words is "three hundred forty-five trillion, seven hundred forty-four billion, seven hundred twenty-seven million, four hundred forty-seven thousand, five hundred forty-three".