42541115773 has 4 divisors (see below), whose sum is σ = 45813509308. Its totient is φ = 39268722240.

The previous prime is 42541115761. The next prime is 42541115789. The reversal of 42541115773 is 37751114524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13377698244 + 29163417529 = 115662^2 + 170773^2 .

It is a cyclic number.

It is not a de Polignac number, because 42541115773 - 2³³ = 33951181181 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 (42541115713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636196748 + ... + 1636196773.

It is an arithmetic number, because the mean of its divisors is an integer number (11453377327).

Almost surely, 2^42541115773 is an apocalyptic number.

It is an amenable number.

42541115773 is a deficient number, since it is larger than the sum of its proper divisors (3272393535).

42541115773 is a wasteful number, since it uses less digits than its factorization.

42541115773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272393534.

The product of its digits is 117600, while the sum is 40.

The spelling of 42541115773 in words is "forty-two billion, five hundred forty-one million, one hundred fifteen thousand, seven hundred seventy-three".