385313313583 has 4 divisors (see below), whose sum is σ = 420341796648. Its totient is φ = 350284830520.

The previous prime is 385313313523. The next prime is 385313313589.

385313313583 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 385313313583 - 2⁹ = 385313313071 is a prime.

It is a super-2 number, since 2×385313313583² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385313313589) 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, 17514241516 + ... + 17514241537.

It is an arithmetic number, because the mean of its divisors is an integer number (105085449162).

Almost surely, 2^385313313583 is an apocalyptic number.

385313313583 is a deficient number, since it is larger than the sum of its proper divisors (35028483065).

385313313583 is a wasteful number, since it uses less digits than its factorization.

385313313583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35028483064.

The product of its digits is 1166400, while the sum is 46.

It can be divided in two parts, 385313 and 313583, that added together give a palindrome (698896).

The spelling of 385313313583 in words is "three hundred eighty-five billion, three hundred thirteen million, three hundred thirteen thousand, five hundred eighty-three".