6863615971 has 2 divisors, whose sum is σ = 6863615972. Its totient is φ = 6863615970.

The previous prime is 6863615959. The next prime is 6863616043. The reversal of 6863615971 is 1795163686.

It is a happy number.

6863615971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6863615971 - 2²¹ = 6861518819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6863615951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3431807985 + 3431807986.

It is an arithmetic number, because the mean of its divisors is an integer number (3431807986).

Almost surely, 2^6863615971 is an apocalyptic number.

6863615971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6863615971 is an equidigital number, since it uses as much as digits as its factorization.

6863615971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 6863615971 is about 82846.9430395594. The cubic root of 6863615971 is about 1900.4261251986.

The spelling of 6863615971 in words is "six billion, eight hundred sixty-three million, six hundred fifteen thousand, nine hundred seventy-one".