6700681069 has 2 divisors, whose sum is σ = 6700681070. Its totient is φ = 6700681068.

The previous prime is 6700681067. The next prime is 6700681079. The reversal of 6700681069 is 9601860076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3998032900 + 2702648169 = 63230^2 + 51987^2 .

It is a cyclic number.

It is not a de Polignac number, because 6700681069 - 2¹ = 6700681067 is a prime.

It is a super-2 number, since 2×6700681069² = 89798253576909965522, which contains 22 as substring.

Together with 6700681067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6700681061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350340534 + 3350340535.

It is an arithmetic number, because the mean of its divisors is an integer number (3350340535).

Almost surely, 2^6700681069 is an apocalyptic number.

It is an amenable number.

6700681069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6700681069 is an equidigital number, since it uses as much as digits as its factorization.

6700681069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 6700681069 is about 81857.6879040692. The cubic root of 6700681069 is about 1885.2675071528.

The spelling of 6700681069 in words is "six billion, seven hundred million, six hundred eighty-one thousand, sixty-nine".