42163370779 has 2 divisors, whose sum is σ = 42163370780. Its totient is φ = 42163370778.

The previous prime is 42163370749. The next prime is 42163370783. The reversal of 42163370779 is 97707336124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42163370779 - 2¹⁵ = 42163338011 is a prime.

It is not a weakly prime, because it can be changed into another prime (42163370719) 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, 21081685389 + 21081685390.

It is an arithmetic number, because the mean of its divisors is an integer number (21081685390).

Almost surely, 2^42163370779 is an apocalyptic number.

42163370779 is a deficient number, since it is larger than the sum of its proper divisors (1).

42163370779 is an equidigital number, since it uses as much as digits as its factorization.

42163370779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1333584, while the sum is 49.

The spelling of 42163370779 in words is "forty-two billion, one hundred sixty-three million, three hundred seventy thousand, seven hundred seventy-nine".