5673394881 has 54 divisors (see below), whose sum is σ = 10478352066. Its totient is φ = 2947190400.

The previous prime is 5673394849. The next prime is 5673394891. The reversal of 5673394881 is 1884933765.

5673394881 is a `hidden beast` number, since 567 + 3 + 39 + 48 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2971994256 + 2701400625 = 54516^2 + 51975^2 .

It is not a de Polignac number, because 5673394881 - 2⁵ = 5673394849 is a prime.

It is a super-2 number, since 2×5673394881² = 64374818951514008322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5673394891) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 201 + ... + 106521.

Almost surely, 2^5673394881 is an apocalyptic number.

It is an amenable number.

5673394881 is a deficient number, since it is larger than the sum of its proper divisors (4804957185).

5673394881 is a wasteful number, since it uses less digits than its factorization.

5673394881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106363 (or 106342 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 5673394881 is about 75321.9415641950. The cubic root of 5673394881 is about 1783.5324038484.

The spelling of 5673394881 in words is "five billion, six hundred seventy-three million, three hundred ninety-four thousand, eight hundred eighty-one".