9651397013 has 2 divisors, whose sum is σ = 9651397014. Its totient is φ = 9651397012.

The previous prime is 9651396971. The next prime is 9651397033. The reversal of 9651397013 is 3107931569.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9483253924 + 168143089 = 97382^2 + 12967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9651397013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9651397033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4825698506 + 4825698507.

It is an arithmetic number, because the mean of its divisors is an integer number (4825698507).

Almost surely, 2^9651397013 is an apocalyptic number.

It is an amenable number.

9651397013 is a deficient number, since it is larger than the sum of its proper divisors (1).

9651397013 is an equidigital number, since it uses as much as digits as its factorization.

9651397013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 9651397013 is about 98241.5238735638. The cubic root of 9651397013 is about 2129.1032698805.

The spelling of 9651397013 in words is "nine billion, six hundred fifty-one million, three hundred ninety-seven thousand, thirteen".