42112763839 has 2 divisors, whose sum is σ = 42112763840. Its totient is φ = 42112763838.

The previous prime is 42112763831. The next prime is 42112763897. The reversal of 42112763839 is 93836721124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42112763839 - 2³ = 42112763831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42112763831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056381919 + 21056381920.

It is an arithmetic number, because the mean of its divisors is an integer number (21056381920).

Almost surely, 2^42112763839 is an apocalyptic number.

42112763839 is a deficient number, since it is larger than the sum of its proper divisors (1).

42112763839 is an equidigital number, since it uses as much as digits as its factorization.

42112763839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The spelling of 42112763839 in words is "forty-two billion, one hundred twelve million, seven hundred sixty-three thousand, eight hundred thirty-nine".