2809793456 has 20 divisors (see below), whose sum is σ = 5764209192. Its totient is φ = 1322255616.

The previous prime is 2809793449. The next prime is 2809793461. The reversal of 2809793456 is 6543979082.

It is a happy number.

2809793456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2809793398 and 2809793407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5164790 + ... + 5165333.

Almost surely, 2^2809793456 is an apocalyptic number.

It is an amenable number.

2809793456 is an abundant number, since it is smaller than the sum of its proper divisors (2954415736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2809793456 is a wasteful number, since it uses less digits than its factorization.

2809793456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330148 (or 10330142 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 2809793456 is about 53007.4849054358. The cubic root of 2809793456 is about 1411.1011059249.

The spelling of 2809793456 in words is "two billion, eight hundred nine million, seven hundred ninety-three thousand, four hundred fifty-six".