385071533773 has 2 divisors, whose sum is σ = 385071533774. Its totient is φ = 385071533772.

The previous prime is 385071533771. The next prime is 385071533797. The reversal of 385071533773 is 377335170583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374449757929 + 10621775844 = 611923^2 + 103062^2 .

It is a cyclic number.

It is not a de Polignac number, because 385071533773 - 2¹ = 385071533771 is a prime.

It is a super-2 number, since 2×385071533773² (a number of 24 digits) contains 22 as substring.

Together with 385071533771, 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 385071533773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385071533771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192535766886 + 192535766887.

It is an arithmetic number, because the mean of its divisors is an integer number (192535766887).

Almost surely, 2^385071533773 is an apocalyptic number.

It is an amenable number.

385071533773 is a deficient number, since it is larger than the sum of its proper divisors (1).

385071533773 is an equidigital number, since it uses as much as digits as its factorization.

385071533773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5556600, while the sum is 52.

The spelling of 385071533773 in words is "three hundred eighty-five billion, seventy-one million, five hundred thirty-three thousand, seven hundred seventy-three".