945385583549 has 24 divisors (see below), whose sum is σ = 1068358872672. Its totient is φ = 829619295680.

The previous prime is 945385583419. The next prime is 945385583587.

It is a happy number.

945385583549 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-945385583549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945385583749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55987862 + ... + 56004744.

It is an arithmetic number, because the mean of its divisors is an integer number (44514953028).

Almost surely, 2^945385583549 is an apocalyptic number.

It is an amenable number.

945385583549 is a deficient number, since it is larger than the sum of its proper divisors (122973289123).

945385583549 is a wasteful number, since it uses less digits than its factorization.

945385583549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23005 (or 22976 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 68.

The spelling of 945385583549 in words is "nine hundred forty-five billion, three hundred eighty-five million, five hundred eighty-three thousand, five hundred forty-nine".