7805628872 has 16 divisors (see below), whose sum is σ = 14992519500. Its totient is φ = 3807623680.

The previous prime is 7805628871. The next prime is 7805628877. The reversal of 7805628872 is 2788265087.

It can be written as a sum of positive squares in 2 ways, for example, as 6643228036 + 1162400836 = 81506^2 + 34094^2 .

It is not an unprimeable number, because it can be changed into a prime (7805628871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11898497 + ... + 11899152.

Almost surely, 2^7805628872 is an apocalyptic number.

It is an amenable number.

7805628872 is a deficient number, since it is larger than the sum of its proper divisors (7186890628).

7805628872 is a wasteful number, since it uses less digits than its factorization.

7805628872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23797696 (or 23797692 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 53.

The square root of 7805628872 is about 88349.4701285752. The cubic root of 7805628872 is about 1983.6694250918.

The spelling of 7805628872 in words is "seven billion, eight hundred five million, six hundred twenty-eight thousand, eight hundred seventy-two".