9199720513 has 2 divisors, whose sum is σ = 9199720514. Its totient is φ = 9199720512.

The previous prime is 9199720511. The next prime is 9199720531. The reversal of 9199720513 is 3150279919.

Together with next prime (9199720531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9156001969 + 43718544 = 95687^2 + 6612^2 .

It is a cyclic number.

It is not a de Polignac number, because 9199720513 - 2¹ = 9199720511 is a prime.

Together with 9199720511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9199720511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4599860256 + 4599860257.

It is an arithmetic number, because the mean of its divisors is an integer number (4599860257).

Almost surely, 2^9199720513 is an apocalyptic number.

It is an amenable number.

9199720513 is a deficient number, since it is larger than the sum of its proper divisors (1).

9199720513 is an equidigital number, since it uses as much as digits as its factorization.

9199720513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 9199720513 is about 95915.1735284882. The cubic root of 9199720513 is about 2095.3578876060.

The spelling of 9199720513 in words is "nine billion, one hundred ninety-nine million, seven hundred twenty thousand, five hundred thirteen".