6516899747 has 2 divisors, whose sum is σ = 6516899748. Its totient is φ = 6516899746.

The previous prime is 6516899723. The next prime is 6516899759. The reversal of 6516899747 is 7479986156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6516899747 - 2¹⁰ = 6516898723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6516899747.

It is not a weakly prime, because it can be changed into another prime (6516899797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3258449873 + 3258449874.

It is an arithmetic number, because the mean of its divisors is an integer number (3258449874).

Almost surely, 2^6516899747 is an apocalyptic number.

6516899747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6516899747 is an equidigital number, since it uses as much as digits as its factorization.

6516899747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 62.

The square root of 6516899747 is about 80727.3172290520. The cubic root of 6516899747 is about 1867.8715759943.

The spelling of 6516899747 in words is "six billion, five hundred sixteen million, eight hundred ninety-nine thousand, seven hundred forty-seven".