42858866593 has 2 divisors, whose sum is σ = 42858866594. Its totient is φ = 42858866592.

The previous prime is 42858866591. The next prime is 42858866627. The reversal of 42858866593 is 39566885824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42077496384 + 781370209 = 205128^2 + 27953^2 .

It is a cyclic number.

It is not a de Polignac number, because 42858866593 - 2¹ = 42858866591 is a prime.

Together with 42858866591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42858866591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21429433296 + 21429433297.

It is an arithmetic number, because the mean of its divisors is an integer number (21429433297).

Almost surely, 2^42858866593 is an apocalyptic number.

It is an amenable number.

42858866593 is a deficient number, since it is larger than the sum of its proper divisors (1).

42858866593 is an equidigital number, since it uses as much as digits as its factorization.

42858866593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99532800, while the sum is 64.

The spelling of 42858866593 in words is "forty-two billion, eight hundred fifty-eight million, eight hundred sixty-six thousand, five hundred ninety-three".