6861964097 has 2 divisors, whose sum is σ = 6861964098. Its totient is φ = 6861964096.

The previous prime is 6861964033. The next prime is 6861964147. The reversal of 6861964097 is 7904691686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6151421761 + 710542336 = 78431^2 + 26656^2 .

It is a cyclic number.

It is not a de Polignac number, because 6861964097 - 2⁶ = 6861964033 is a prime.

It is not a weakly prime, because it can be changed into another prime (6861964027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3430982048 + 3430982049.

It is an arithmetic number, because the mean of its divisors is an integer number (3430982049).

Almost surely, 2^6861964097 is an apocalyptic number.

It is an amenable number.

6861964097 is a deficient number, since it is larger than the sum of its proper divisors (1).

6861964097 is an equidigital number, since it uses as much as digits as its factorization.

6861964097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 6861964097 is about 82836.9730072267. The cubic root of 6861964097 is about 1900.2736537514.

The spelling of 6861964097 in words is "six billion, eight hundred sixty-one million, nine hundred sixty-four thousand, ninety-seven".