42660210317 has 2 divisors, whose sum is σ = 42660210318. Its totient is φ = 42660210316.

The previous prime is 42660210277. The next prime is 42660210323. The reversal of 42660210317 is 71301206624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39386768521 + 3273441796 = 198461^2 + 57214^2 .

It is a cyclic number.

It is not a de Polignac number, because 42660210317 - 2¹⁶ = 42660144781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42660218317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21330105158 + 21330105159.

It is an arithmetic number, because the mean of its divisors is an integer number (21330105159).

Almost surely, 2^42660210317 is an apocalyptic number.

It is an amenable number.

42660210317 is a deficient number, since it is larger than the sum of its proper divisors (1).

42660210317 is an equidigital number, since it uses as much as digits as its factorization.

42660210317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 42660210317 in words is "forty-two billion, six hundred sixty million, two hundred ten thousand, three hundred seventeen".