7869312016 has 20 divisors (see below), whose sum is σ = 15403978492. Its totient is φ = 3894091776.

The previous prime is 7869311993. The next prime is 7869312079. The reversal of 7869312016 is 6102139687.

It can be written as a sum of positive squares in 2 ways, for example, as 4653968400 + 3215343616 = 68220^2 + 56704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2533665 + ... + 2536768.

Almost surely, 2^7869312016 is an apocalyptic number.

It is an amenable number.

7869312016 is a deficient number, since it is larger than the sum of its proper divisors (7534666476).

7869312016 is a wasteful number, since it uses less digits than its factorization.

7869312016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070538 (or 5070532 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7869312016 is about 88709.1427982483. The cubic root of 7869312016 is about 1989.0494872281.

Subtracting from 7869312016 its reverse (6102139687), we obtain a cube (1767172329 = 1209³).

It can be divided in two parts, 78693 and 12016, that added together give a palindrome (90709).

The spelling of 7869312016 in words is "seven billion, eight hundred sixty-nine million, three hundred twelve thousand, sixteen".