42073172759 has 2 divisors, whose sum is σ = 42073172760. Its totient is φ = 42073172758.

The previous prime is 42073172741. The next prime is 42073172761. The reversal of 42073172759 is 95727137024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42073172759 is a prime.

Together with 42073172761, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42073172359) 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, 21036586379 + 21036586380.

It is an arithmetic number, because the mean of its divisors is an integer number (21036586380).

Almost surely, 2^42073172759 is an apocalyptic number.

42073172759 is a deficient number, since it is larger than the sum of its proper divisors (1).

42073172759 is an equidigital number, since it uses as much as digits as its factorization.

42073172759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 42073172759 in words is "forty-two billion, seventy-three million, one hundred seventy-two thousand, seven hundred fifty-nine".