5681880449 has 16 divisors (see below), whose sum is σ = 6533235072. Its totient is φ = 4840518528.

The previous prime is 5681880443. The next prime is 5681880461. The reversal of 5681880449 is 9440881865.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5681880449 - 2²⁴ = 5665103233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5681880449.

It is not an unprimeable number, because it can be changed into a prime (5681880443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996962 + ... + 1002644.

It is an arithmetic number, because the mean of its divisors is an integer number (408327192).

Almost surely, 2^5681880449 is an apocalyptic number.

It is an amenable number.

5681880449 is a deficient number, since it is larger than the sum of its proper divisors (851354623).

5681880449 is a wasteful number, since it uses less digits than its factorization.

5681880449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536.

The product of its (nonzero) digits is 2211840, while the sum is 53.

The square root of 5681880449 is about 75378.2491770670. The cubic root of 5681880449 is about 1784.4211572162.

The spelling of 5681880449 in words is "five billion, six hundred eighty-one million, eight hundred eighty thousand, four hundred forty-nine".