6649410697 has 2 divisors, whose sum is σ = 6649410698. Its totient is φ = 6649410696.

The previous prime is 6649410683. The next prime is 6649410701. The reversal of 6649410697 is 7960149466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3669451776 + 2979958921 = 60576^2 + 54589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6649410697 is a prime.

It is not a weakly prime, because it can be changed into another prime (6649410497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324705348 + 3324705349.

It is an arithmetic number, because the mean of its divisors is an integer number (3324705349).

Almost surely, 2^6649410697 is an apocalyptic number.

It is an amenable number.

6649410697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6649410697 is an equidigital number, since it uses as much as digits as its factorization.

6649410697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 6649410697 is about 81543.9188229263. The cubic root of 6649410697 is about 1880.4468057725.

The spelling of 6649410697 in words is "six billion, six hundred forty-nine million, four hundred ten thousand, six hundred ninety-seven".