6869651851 has 2 divisors, whose sum is σ = 6869651852. Its totient is φ = 6869651850.

The previous prime is 6869651809. The next prime is 6869651857. The reversal of 6869651851 is 1581569686.

6869651851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6869651851 - 2¹¹ = 6869649803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6869651792 and 6869651801.

It is not a weakly prime, because it can be changed into another prime (6869651857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434825925 + 3434825926.

It is an arithmetic number, because the mean of its divisors is an integer number (3434825926).

Almost surely, 2^6869651851 is an apocalyptic number.

6869651851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6869651851 is an equidigital number, since it uses as much as digits as its factorization.

6869651851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 55.

The square root of 6869651851 is about 82883.3629324969. The cubic root of 6869651851 is about 1900.9830417115.

The spelling of 6869651851 in words is "six billion, eight hundred sixty-nine million, six hundred fifty-one thousand, eight hundred fifty-one".