842987835439 has 2 divisors, whose sum is σ = 842987835440. Its totient is φ = 842987835438.

The previous prime is 842987835331. The next prime is 842987835491. The reversal of 842987835439 is 934538789248.

842987835439 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 is a cyclic number.

It is not a de Polignac number, because 842987835439 - 2¹³ = 842987827247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842987835499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421493917719 + 421493917720.

It is an arithmetic number, because the mean of its divisors is an integer number (421493917720).

Almost surely, 2^842987835439 is an apocalyptic number.

842987835439 is a deficient number, since it is larger than the sum of its proper divisors (1).

842987835439 is an equidigital number, since it uses as much as digits as its factorization.

842987835439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 418037760, while the sum is 70.

The spelling of 842987835439 in words is "eight hundred forty-two billion, nine hundred eighty-seven million, eight hundred thirty-five thousand, four hundred thirty-nine".