9719768228 has 6 divisors (see below), whose sum is σ = 17009594406. Its totient is φ = 4859884112.

The previous prime is 9719768221. The next prime is 9719768257. The reversal of 9719768228 is 8228679179.

It can be written as a sum of positive squares in only one way, i.e., 5219773504 + 4499994724 = 72248^2 + 67082^2 .

It is not an unprimeable number, because it can be changed into a prime (9719768221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214971025 + ... + 1214971032.

It is an arithmetic number, because the mean of its divisors is an integer number (2834932401).

Almost surely, 2^9719768228 is an apocalyptic number.

It is an amenable number.

9719768228 is a deficient number, since it is larger than the sum of its proper divisors (7289826178).

9719768228 is a wasteful number, since it uses less digits than its factorization.

9719768228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429942061 (or 2429942059 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 59.

The square root of 9719768228 is about 98588.8849110284. The cubic root of 9719768228 is about 2134.1190198375.

The spelling of 9719768228 in words is "nine billion, seven hundred nineteen million, seven hundred sixty-eight thousand, two hundred twenty-eight".