394332836353 has 2 divisors, whose sum is σ = 394332836354. Its totient is φ = 394332836352.

The previous prime is 394332836351. The next prime is 394332836453. The reversal of 394332836353 is 353638233493.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233730670849 + 160602165504 = 483457^2 + 400752^2 .

It is a cyclic number.

It is not a de Polignac number, because 394332836353 - 2¹ = 394332836351 is a prime.

Together with 394332836351, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 394332836353.

It is not a weakly prime, because it can be changed into another prime (394332836351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197166418176 + 197166418177.

It is an arithmetic number, because the mean of its divisors is an integer number (197166418177).

Almost surely, 2^394332836353 is an apocalyptic number.

It is an amenable number.

394332836353 is a deficient number, since it is larger than the sum of its proper divisors (1).

394332836353 is an equidigital number, since it uses as much as digits as its factorization.

394332836353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 52.

The spelling of 394332836353 in words is "three hundred ninety-four billion, three hundred thirty-two million, eight hundred thirty-six thousand, three hundred fifty-three".