6709860881 has 2 divisors, whose sum is σ = 6709860882. Its totient is φ = 6709860880.

The previous prime is 6709860853. The next prime is 6709860889. The reversal of 6709860881 is 1880689076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4930286656 + 1779574225 = 70216^2 + 42185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6709860881 is a prime.

It is a super-2 number, since 2×6709860881² = 90044466084748192322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6709860889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3354930440 + 3354930441.

It is an arithmetic number, because the mean of its divisors is an integer number (3354930441).

Almost surely, 2^6709860881 is an apocalyptic number.

It is an amenable number.

6709860881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6709860881 is an equidigital number, since it uses as much as digits as its factorization.

6709860881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 6709860881 is about 81913.7404896150. The cubic root of 6709860881 is about 1886.1280417743.

The spelling of 6709860881 in words is "six billion, seven hundred nine million, eight hundred sixty thousand, eight hundred eighty-one".