42237567857 has 2 divisors, whose sum is σ = 42237567858. Its totient is φ = 42237567856.

The previous prime is 42237567781. The next prime is 42237567877. The reversal of 42237567857 is 75876573224.

42237567857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32578806016 + 9658761841 = 180496^2 + 98279^2 .

It is a cyclic number.

It is not a de Polignac number, because 42237567857 - 2³² = 37942600561 is a prime.

It is not a weakly prime, because it can be changed into another prime (42237567877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21118783928 + 21118783929.

It is an arithmetic number, because the mean of its divisors is an integer number (21118783929).

Almost surely, 2^42237567857 is an apocalyptic number.

It is an amenable number.

42237567857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42237567857 is an equidigital number, since it uses as much as digits as its factorization.

42237567857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 56.

The spelling of 42237567857 in words is "forty-two billion, two hundred thirty-seven million, five hundred sixty-seven thousand, eight hundred fifty-seven".