6518970659 has 2 divisors, whose sum is σ = 6518970660. Its totient is φ = 6518970658.

The previous prime is 6518970649. The next prime is 6518970677. The reversal of 6518970659 is 9560798156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6518970659 - 2⁴ = 6518970643 is a prime.

It is not a weakly prime, because it can be changed into another prime (6518970649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3259485329 + 3259485330.

It is an arithmetic number, because the mean of its divisors is an integer number (3259485330).

Almost surely, 2^6518970659 is an apocalyptic number.

6518970659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6518970659 is an equidigital number, since it uses as much as digits as its factorization.

6518970659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 6518970659 is about 80740.1427977434. The cubic root of 6518970659 is about 1868.0694097365.

The spelling of 6518970659 in words is "six billion, five hundred eighteen million, nine hundred seventy thousand, six hundred fifty-nine".