3385128773 has 4 divisors (see below), whose sum is σ = 3645523308. Its totient is φ = 3124734240.

The previous prime is 3385128763. The next prime is 3385128781. The reversal of 3385128773 is 3778215833.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2313417604 + 1071711169 = 48098^2 + 32737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3385128773 is a prime.

It is a super-2 number, since 2×3385128773² = 22918193619584971058, which 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 (3385128713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130197248 + ... + 130197273.

It is an arithmetic number, because the mean of its divisors is an integer number (911380827).

Almost surely, 2^3385128773 is an apocalyptic number.

It is an amenable number.

3385128773 is a deficient number, since it is larger than the sum of its proper divisors (260394535).

3385128773 is a wasteful number, since it uses less digits than its factorization.

3385128773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260394534.

The product of its digits is 846720, while the sum is 47.

The square root of 3385128773 is about 58181.8594838632. The cubic root of 3385128773 is about 1501.4990603426.

The spelling of 3385128773 in words is "three billion, three hundred eighty-five million, one hundred twenty-eight thousand, seven hundred seventy-three".