7963819280 has 20 divisors (see below), whose sum is σ = 18515880012. Its totient is φ = 3185527680.

The previous prime is 7963819267. The next prime is 7963819289. The reversal of 7963819280 is 829183697.

It can be written as a sum of positive squares in 2 ways, for example, as 5708709136 + 2255110144 = 75556^2 + 47488^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7963819289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49773791 + ... + 49773950.

Almost surely, 2^7963819280 is an apocalyptic number.

It is an amenable number.

7963819280 is an abundant number, since it is smaller than the sum of its proper divisors (10552060732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7963819280 is a wasteful number, since it uses less digits than its factorization.

7963819280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99547754 (or 99547748 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 7963819280 is about 89240.2335272606. The cubic root of 7963819280 is about 1996.9803832518.

The spelling of 7963819280 in words is "seven billion, nine hundred sixty-three million, eight hundred nineteen thousand, two hundred eighty".