385778877583 has 8 divisors (see below), whose sum is σ = 420880348800. Its totient is φ = 350682517080.

The previous prime is 385778877559. The next prime is 385778877619.

385778877583 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385778877583 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 (385778877503) 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 7 ways as a sum of consecutive naturals, for example, 1118985 + ... + 1422562.

It is an arithmetic number, because the mean of its divisors is an integer number (52610043600).

Almost surely, 2^385778877583 is an apocalyptic number.

385778877583 is a deficient number, since it is larger than the sum of its proper divisors (35101471217).

385778877583 is a wasteful number, since it uses less digits than its factorization.

385778877583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555357.

The product of its digits is 2212761600, while the sum is 76.

The spelling of 385778877583 in words is "three hundred eighty-five billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, five hundred eighty-three".