5780805781 has 8 divisors (see below), whose sum is σ = 5881152960. Its totient is φ = 5680537632.

The previous prime is 5780805773. The next prime is 5780805787. The reversal of 5780805781 is 1875080875.

5780805781 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5780805781 - 2³ = 5780805773 is a prime.

It is a super-2 number, since 2×5780805781² = 66835430955286039922, 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 (5780805787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138721 + ... + 175513.

It is an arithmetic number, because the mean of its divisors is an integer number (735144120).

Almost surely, 2^5780805781 is an apocalyptic number.

It is an amenable number.

5780805781 is a deficient number, since it is larger than the sum of its proper divisors (100347179).

5780805781 is a wasteful number, since it uses less digits than its factorization.

5780805781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39515.

The product of its (nonzero) digits is 627200, while the sum is 49.

The square root of 5780805781 is about 76031.6104064619. The cubic root of 5780805781 is about 1794.7176182293.

The spelling of 5780805781 in words is "five billion, seven hundred eighty million, eight hundred five thousand, seven hundred eighty-one".