42112542079 has 2 divisors, whose sum is σ = 42112542080. Its totient is φ = 42112542078.

The previous prime is 42112541971. The next prime is 42112542083. The reversal of 42112542079 is 97024521124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42112542079 - 2²⁹ = 41575671167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42112542179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056271039 + 21056271040.

It is an arithmetic number, because the mean of its divisors is an integer number (21056271040).

Almost surely, 2^42112542079 is an apocalyptic number.

42112542079 is a deficient number, since it is larger than the sum of its proper divisors (1).

42112542079 is an equidigital number, since it uses as much as digits as its factorization.

42112542079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 42112542079 in words is "forty-two billion, one hundred twelve million, five hundred forty-two thousand, seventy-nine".