7128805198 has 16 divisors (see below), whose sum is σ = 11042282880. Its totient is φ = 3448130400.

The previous prime is 7128805153. The next prime is 7128805231. The reversal of 7128805198 is 8915088217.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 157288 + ... + 197476.

It is an arithmetic number, because the mean of its divisors is an integer number (690142680).

Almost surely, 2^7128805198 is an apocalyptic number.

7128805198 is a deficient number, since it is larger than the sum of its proper divisors (3913477682).

7128805198 is a wasteful number, since it uses less digits than its factorization.

7128805198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43083.

The product of its (nonzero) digits is 322560, while the sum is 49.

The square root of 7128805198 is about 84432.2521196728. The cubic root of 7128805198 is about 1924.5930616054.

The spelling of 7128805198 in words is "seven billion, one hundred twenty-eight million, eight hundred five thousand, one hundred ninety-eight".