42093441857 has 2 divisors, whose sum is σ = 42093441858. Its totient is φ = 42093441856.

The previous prime is 42093441827. The next prime is 42093441883. The reversal of 42093441857 is 75814439024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25413461056 + 16679980801 = 159416^2 + 129151^2 .

It is a cyclic number.

It is not a de Polignac number, because 42093441857 - 2¹⁰ = 42093440833 is a prime.

It is not a weakly prime, because it can be changed into another prime (42093441827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21046720928 + 21046720929.

It is an arithmetic number, because the mean of its divisors is an integer number (21046720929).

Almost surely, 2^42093441857 is an apocalyptic number.

It is an amenable number.

42093441857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42093441857 is an equidigital number, since it uses as much as digits as its factorization.

42093441857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 42093441857 in words is "forty-two billion, ninety-three million, four hundred forty-one thousand, eight hundred fifty-seven".