42543340573 has 16 divisors (see below), whose sum is σ = 44741652480. Its totient is φ = 40409564800.

The previous prime is 42543340459. The next prime is 42543340597. The reversal of 42543340573 is 37504334524.

It is a cyclic number.

It is not a de Polignac number, because 42543340573 - 2⁹ = 42543340061 is a prime.

It is a super-2 number, since 2×42543340573² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42547340573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310263 + ... + 425851.

It is an arithmetic number, because the mean of its divisors is an integer number (2796353280).

Almost surely, 2^42543340573 is an apocalyptic number.

It is an amenable number.

42543340573 is a deficient number, since it is larger than the sum of its proper divisors (2198311907).

42543340573 is a wasteful number, since it uses less digits than its factorization.

42543340573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115868.

The product of its (nonzero) digits is 604800, while the sum is 40.

The spelling of 42543340573 in words is "forty-two billion, five hundred forty-three million, three hundred forty thousand, five hundred seventy-three".