7578638828 has 48 divisors (see below), whose sum is σ = 14798718144. Its totient is φ = 3377510400.

The previous prime is 7578638807. The next prime is 7578638831. The reversal of 7578638828 is 8288368757.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133976 + ... + 181952.

It is an arithmetic number, because the mean of its divisors is an integer number (308306628).

Almost surely, 2^7578638828 is an apocalyptic number.

It is an amenable number.

7578638828 is a deficient number, since it is larger than the sum of its proper divisors (7220079316).

7578638828 is a wasteful number, since it uses less digits than its factorization.

7578638828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48122 (or 48120 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 62.

The square root of 7578638828 is about 87055.3779384134. The cubic root of 7578638828 is about 1964.2513947261.

The spelling of 7578638828 in words is "seven billion, five hundred seventy-eight million, six hundred thirty-eight thousand, eight hundred twenty-eight".