385408804583 has 4 divisors (see below), whose sum is σ = 420445968648. Its totient is φ = 350371640520.

The previous prime is 385408804579. The next prime is 385408804589.

It is a happy number.

385408804583 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 385408804583 - 2² = 385408804579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385408804589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17518582016 + ... + 17518582037.

It is an arithmetic number, because the mean of its divisors is an integer number (105111492162).

Almost surely, 2^385408804583 is an apocalyptic number.

385408804583 is a deficient number, since it is larger than the sum of its proper divisors (35037164065).

385408804583 is a wasteful number, since it uses less digits than its factorization.

385408804583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35037164064.

The product of its (nonzero) digits is 14745600, while the sum is 56.

The spelling of 385408804583 in words is "three hundred eighty-five billion, four hundred eight million, eight hundred four thousand, five hundred eighty-three".