442102339709 has 2 divisors, whose sum is σ = 442102339710. Its totient is φ = 442102339708.

The previous prime is 442102339699. The next prime is 442102339727. The reversal of 442102339709 is 907933201244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435593400025 + 6508939684 = 659995^2 + 80678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442102339709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442102339709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442102359709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221051169854 + 221051169855.

It is an arithmetic number, because the mean of its divisors is an integer number (221051169855).

Almost surely, 2^442102339709 is an apocalyptic number.

It is an amenable number.

442102339709 is a deficient number, since it is larger than the sum of its proper divisors (1).

442102339709 is an equidigital number, since it uses as much as digits as its factorization.

442102339709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 442102339709 in words is "four hundred forty-two billion, one hundred two million, three hundred thirty-nine thousand, seven hundred nine".