5809073921 has 6 divisors (see below), whose sum is σ = 6757494210. Its totient is φ = 4979206176.

The previous prime is 5809073917. The next prime is 5809073923. The reversal of 5809073921 is 1293709085.

It can be written as a sum of positive squares in only one way, i.e., 3577834225 + 2231239696 = 59815^2 + 47236^2 .

It is not a de Polignac number, because 5809073921 - 2² = 5809073917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5809073923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59276216 + ... + 59276313.

It is an arithmetic number, because the mean of its divisors is an integer number (1126249035).

Almost surely, 2^5809073921 is an apocalyptic number.

It is an amenable number.

5809073921 is a deficient number, since it is larger than the sum of its proper divisors (948420289).

5809073921 is a wasteful number, since it uses less digits than its factorization.

5809073921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118552543 (or 118552536 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 5809073921 is about 76217.2809866634. The cubic root of 5809073921 is about 1797.6382524460.

The spelling of 5809073921 in words is "five billion, eight hundred nine million, seventy-three thousand, nine hundred twenty-one".