6909718097 has 2 divisors, whose sum is σ = 6909718098. Its totient is φ = 6909718096.

The previous prime is 6909718093. The next prime is 6909718133. The reversal of 6909718097 is 7908179096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6875892241 + 33825856 = 82921^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 6909718097 - 2² = 6909718093 is a prime.

It is not a weakly prime, because it can be changed into another prime (6909718093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3454859048 + 3454859049.

It is an arithmetic number, because the mean of its divisors is an integer number (3454859049).

Almost surely, 2^6909718097 is an apocalyptic number.

It is an amenable number.

6909718097 is a deficient number, since it is larger than the sum of its proper divisors (1).

6909718097 is an equidigital number, since it uses as much as digits as its factorization.

6909718097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 6909718097 is about 83124.7141168016. The cubic root of 6909718097 is about 1904.6716157234.

The spelling of 6909718097 in words is "six billion, nine hundred nine million, seven hundred eighteen thousand, ninety-seven".