6866973497 has 2 divisors, whose sum is σ = 6866973498. Its totient is φ = 6866973496.

The previous prime is 6866973473. The next prime is 6866973499. The reversal of 6866973497 is 7943796686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6860643241 + 6330256 = 82829^2 + 2516^2 .

It is a cyclic number.

It is not a de Polignac number, because 6866973497 - 2⁶ = 6866973433 is a prime.

Together with 6866973499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6866973499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3433486748 + 3433486749.

It is an arithmetic number, because the mean of its divisors is an integer number (3433486749).

Almost surely, 2^6866973497 is an apocalyptic number.

It is an amenable number.

6866973497 is a deficient number, since it is larger than the sum of its proper divisors (1).

6866973497 is an equidigital number, since it uses as much as digits as its factorization.

6866973497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82301184, while the sum is 65.

The square root of 6866973497 is about 82867.2039892743. The cubic root of 6866973497 is about 1900.7359565373.

The spelling of 6866973497 in words is "six billion, eight hundred sixty-six million, nine hundred seventy-three thousand, four hundred ninety-seven".