9628767797 has 4 divisors (see below), whose sum is σ = 10504110336. Its totient is φ = 8753425260.

The previous prime is 9628767793. The next prime is 9628767839. The reversal of 9628767797 is 7977678269.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7977678269 = 11 ⋅725243479.

It is a cyclic number.

It is not a de Polignac number, because 9628767797 - 2² = 9628767793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9628767793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437671253 + ... + 437671274.

It is an arithmetic number, because the mean of its divisors is an integer number (2626027584).

Almost surely, 2^9628767797 is an apocalyptic number.

It is an amenable number.

9628767797 is a deficient number, since it is larger than the sum of its proper divisors (875342539).

9628767797 is a wasteful number, since it uses less digits than its factorization.

9628767797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875342538.

The product of its digits is 112021056, while the sum is 68.

The square root of 9628767797 is about 98126.2849444531. The cubic root of 9628767797 is about 2127.4379620159.

The spelling of 9628767797 in words is "nine billion, six hundred twenty-eight million, seven hundred sixty-seven thousand, seven hundred ninety-seven".