9778687796 has 12 divisors (see below), whose sum is σ = 17113414752. Its totient is φ = 4889140728.

The previous prime is 9778687769. The next prime is 9778687813. The reversal of 9778687796 is 6977868779.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125441 + ... + 187863.

It is an arithmetic number, because the mean of its divisors is an integer number (1426117896).

Almost surely, 2^9778687796 is an apocalyptic number.

It is an amenable number.

9778687796 is a deficient number, since it is larger than the sum of its proper divisors (7334726956).

9778687796 is a wasteful number, since it uses less digits than its factorization.

9778687796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101590 (or 101588 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 74.

The square root of 9778687796 is about 98887.2478937502. The cubic root of 9778687796 is about 2138.4225569095.

The spelling of 9778687796 in words is "nine billion, seven hundred seventy-eight million, six hundred eighty-seven thousand, seven hundred ninety-six".