42804388771 has 2 divisors, whose sum is σ = 42804388772. Its totient is φ = 42804388770.

The previous prime is 42804388673. The next prime is 42804388789. The reversal of 42804388771 is 17788340824.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42804388771 is a prime.

It is not a weakly prime, because it can be changed into another prime (42804388171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21402194385 + 21402194386.

It is an arithmetic number, because the mean of its divisors is an integer number (21402194386).

Almost surely, 2^42804388771 is an apocalyptic number.

42804388771 is a deficient number, since it is larger than the sum of its proper divisors (1).

42804388771 is an equidigital number, since it uses as much as digits as its factorization.

42804388771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 42804388771 in words is "forty-two billion, eight hundred four million, three hundred eighty-eight thousand, seven hundred seventy-one".