842148878579 has 2 divisors, whose sum is σ = 842148878580. Its totient is φ = 842148878578.

The previous prime is 842148878503. The next prime is 842148878603. The reversal of 842148878579 is 975878841248.

842148878579 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 842148878579 - 2¹⁶ = 842148813043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (842148878279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421074439289 + 421074439290.

It is an arithmetic number, because the mean of its divisors is an integer number (421074439290).

Almost surely, 2^842148878579 is an apocalyptic number.

842148878579 is a deficient number, since it is larger than the sum of its proper divisors (1).

842148878579 is an equidigital number, since it uses as much as digits as its factorization.

842148878579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 289013760, while the sum is 71.

The spelling of 842148878579 in words is "eight hundred forty-two billion, one hundred forty-eight million, eight hundred seventy-eight thousand, five hundred seventy-nine".