9768686931 has 12 divisors (see below), whose sum is σ = 14940344952. Its totient is φ = 6129372096.

The previous prime is 9768686911. The next prime is 9768686951. The reversal of 9768686931 is 1396868679.

9768686931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9768686911) and next prime (9768686951).

It is not a de Polignac number, because 9768686931 - 2¹⁴ = 9768670547 is a prime.

It is a super-2 number, since 2×9768686931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9768686911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31923661 + ... + 31923966.

It is an arithmetic number, because the mean of its divisors is an integer number (1245028746).

Almost surely, 2^9768686931 is an apocalyptic number.

9768686931 is a deficient number, since it is larger than the sum of its proper divisors (5171658021).

9768686931 is a wasteful number, since it uses less digits than its factorization.

9768686931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63847650 (or 63847647 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 9768686931 is about 98836.6679476802. The cubic root of 9768686931 is about 2137.6933053454.

The spelling of 9768686931 in words is "nine billion, seven hundred sixty-eight million, six hundred eighty-six thousand, nine hundred thirty-one".