5780396649 has 4 divisors (see below), whose sum is σ = 7707195536. Its totient is φ = 3853597764.

The previous prime is 5780396597. The next prime is 5780396681. The reversal of 5780396649 is 9466930875.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5780396649 - 2⁸ = 5780396393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5780391649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963399439 + ... + 963399444.

It is an arithmetic number, because the mean of its divisors is an integer number (1926798884).

Almost surely, 2^5780396649 is an apocalyptic number.

It is an amenable number.

5780396649 is a deficient number, since it is larger than the sum of its proper divisors (1926798887).

5780396649 is a wasteful number, since it uses less digits than its factorization.

5780396649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926798886.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The square root of 5780396649 is about 76028.9198200264. The cubic root of 5780396649 is about 1794.6752773193.

The spelling of 5780396649 in words is "five billion, seven hundred eighty million, three hundred ninety-six thousand, six hundred forty-nine".