9768319257 has 8 divisors (see below), whose sum is σ = 13104330784. Its totient is φ = 6472260288.

The previous prime is 9768319237. The next prime is 9768319279. The reversal of 9768319257 is 7529138679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9768319257 - 2⁶ = 9768319193 is a prime.

It is a super-2 number, since 2×9768319257² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9768319197 and 9768319206.

It is not an unprimeable number, because it can be changed into a prime (9768319217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9987568 + ... + 9988545.

It is an arithmetic number, because the mean of its divisors is an integer number (1638041348).

Almost surely, 2^9768319257 is an apocalyptic number.

It is an amenable number.

9768319257 is a deficient number, since it is larger than the sum of its proper divisors (3336011527).

9768319257 is a wasteful number, since it uses less digits than its factorization.

9768319257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19976279.

The product of its digits is 5715360, while the sum is 57.

The square root of 9768319257 is about 98834.8079221081. The cubic root of 9768319257 is about 2137.6664854969. Note that the first 3 decimals are identical.

The spelling of 9768319257 in words is "nine billion, seven hundred sixty-eight million, three hundred nineteen thousand, two hundred fifty-seven".