385336638307 has 2 divisors, whose sum is σ = 385336638308. Its totient is φ = 385336638306.

The previous prime is 385336638299. The next prime is 385336638359. The reversal of 385336638307 is 703836633583.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385336638307 - 2³ = 385336638299 is a prime.

It is not a weakly prime, because it can be changed into another prime (385336638367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192668319153 + 192668319154.

It is an arithmetic number, because the mean of its divisors is an integer number (192668319154).

Almost surely, 2^385336638307 is an apocalyptic number.

385336638307 is a deficient number, since it is larger than the sum of its proper divisors (1).

385336638307 is an equidigital number, since it uses as much as digits as its factorization.

385336638307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 55.

The spelling of 385336638307 in words is "three hundred eighty-five billion, three hundred thirty-six million, six hundred thirty-eight thousand, three hundred seven".