385212663305 has 8 divisors (see below), whose sum is σ = 465629322312. Its totient is φ = 305920713088.

The previous prime is 385212663271. The next prime is 385212663383. The reversal of 385212663305 is 503366212583.

It can be written as a sum of positive squares in 4 ways, for example, as 166066030144 + 219146633161 = 407512^2 + 468131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 385212663305 - 2²⁰ = 385211614729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281176442 + ... + 281177811.

It is an arithmetic number, because the mean of its divisors is an integer number (58203665289).

Almost surely, 2^385212663305 is an apocalyptic number.

It is an amenable number.

385212663305 is a deficient number, since it is larger than the sum of its proper divisors (80416659007).

385212663305 is a wasteful number, since it uses less digits than its factorization.

385212663305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562354395.

The product of its (nonzero) digits is 777600, while the sum is 44.

Adding to 385212663305 its reverse (503366212583), we get a palindrome (888578875888).

The spelling of 385212663305 in words is "three hundred eighty-five billion, two hundred twelve million, six hundred sixty-three thousand, three hundred five".