9479878816 has 48 divisors (see below), whose sum is σ = 18771094440. Its totient is φ = 4712693760.

The previous prime is 9479878777. The next prime is 9479878853. The reversal of 9479878816 is 6188789749.

It can be written as a sum of positive squares in 4 ways, for example, as 8824723600 + 655155216 = 93940^2 + 25596^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8396140 + ... + 8397268.

Almost surely, 2^9479878816 is an apocalyptic number.

It is an amenable number.

9479878816 is a deficient number, since it is larger than the sum of its proper divisors (9291215624).

9479878816 is a wasteful number, since it uses less digits than its factorization.

9479878816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2409 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 67.

The square root of 9479878816 is about 97364.6692388979. The cubic root of 9479878816 is about 2116.4154758219.

The spelling of 9479878816 in words is "nine billion, four hundred seventy-nine million, eight hundred seventy-eight thousand, eight hundred sixteen".