385042968321 has 16 divisors (see below), whose sum is σ = 560194143168. Its totient is φ = 233304523200.

The previous prime is 385042968313. The next prime is 385042968337. The reversal of 385042968321 is 123869240583.

It is a happy number.

It is not a de Polignac number, because 385042968321 - 2³ = 385042968313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385042968371) 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 in 15 ways as a sum of consecutive naturals, for example, 1228546 + ... + 1509771.

It is an arithmetic number, because the mean of its divisors is an integer number (35012133948).

Almost surely, 2^385042968321 is an apocalyptic number.

It is an amenable number.

385042968321 is a deficient number, since it is larger than the sum of its proper divisors (175151174847).

385042968321 is a wasteful number, since it uses less digits than its factorization.

385042968321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742592.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 385042968321 in words is "three hundred eighty-five billion, forty-two million, nine hundred sixty-eight thousand, three hundred twenty-one".