42861333289 has 2 divisors, whose sum is σ = 42861333290. Its totient is φ = 42861333288.

The previous prime is 42861333259. The next prime is 42861333353. The reversal of 42861333289 is 98233316824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42350347264 + 510986025 = 205792^2 + 22605^2 .

It is a cyclic number.

It is not a de Polignac number, because 42861333289 - 2⁵ = 42861333257 is a prime.

It is not a weakly prime, because it can be changed into another prime (42861333259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21430666644 + 21430666645.

It is an arithmetic number, because the mean of its divisors is an integer number (21430666645).

Almost surely, 2^42861333289 is an apocalyptic number.

It is an amenable number.

42861333289 is a deficient number, since it is larger than the sum of its proper divisors (1).

42861333289 is an equidigital number, since it uses as much as digits as its factorization.

42861333289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 49.

The spelling of 42861333289 in words is "forty-two billion, eight hundred sixty-one million, three hundred thirty-three thousand, two hundred eighty-nine".