42320459873 has 2 divisors, whose sum is σ = 42320459874. Its totient is φ = 42320459872.

The previous prime is 42320459869. The next prime is 42320459911. The reversal of 42320459873 is 37895402324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41609064289 + 711395584 = 203983^2 + 26672^2 .

It is a cyclic number.

It is not a de Polignac number, because 42320459873 - 2² = 42320459869 is a prime.

It is a super-2 number, since 2×42320459873² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42320459273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21160229936 + 21160229937.

It is an arithmetic number, because the mean of its divisors is an integer number (21160229937).

Almost surely, 2^42320459873 is an apocalyptic number.

It is an amenable number.

42320459873 is a deficient number, since it is larger than the sum of its proper divisors (1).

42320459873 is an equidigital number, since it uses as much as digits as its factorization.

42320459873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 42320459873 in words is "forty-two billion, three hundred twenty million, four hundred fifty-nine thousand, eight hundred seventy-three".