6880928849 has 2 divisors, whose sum is σ = 6880928850. Its totient is φ = 6880928848.

The previous prime is 6880928839. The next prime is 6880928911. The reversal of 6880928849 is 9488290886.

It is an a-pointer prime, because the next prime (6880928911) can be obtained adding 6880928849 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6403200400 + 477728449 = 80020^2 + 21857^2 .

It is a cyclic number.

It is not a de Polignac number, because 6880928849 - 2²⁴ = 6864151633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6880928791 and 6880928800.

It is not a weakly prime, because it can be changed into another prime (6880928819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440464424 + 3440464425.

It is an arithmetic number, because the mean of its divisors is an integer number (3440464425).

Almost surely, 2^6880928849 is an apocalyptic number.

It is an amenable number.

6880928849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6880928849 is an equidigital number, since it uses as much as digits as its factorization.

6880928849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15925248, while the sum is 62.

The square root of 6880928849 is about 82951.3643588820. The cubic root of 6880928849 is about 1902.0226704441.

The spelling of 6880928849 in words is "six billion, eight hundred eighty million, nine hundred twenty-eight thousand, eight hundred forty-nine".