6648798898 has 16 divisors (see below), whose sum is σ = 11399895360. Its totient is φ = 2848996656.

The previous prime is 6648798841. The next prime is 6648798967. The reversal of 6648798898 is 8988978466.

It is a self number, because there is not a number n which added to its sum of digits gives 6648798898.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50968 + ... + 126076.

It is an arithmetic number, because the mean of its divisors is an integer number (712493460).

Almost surely, 2^6648798898 is an apocalyptic number.

6648798898 is a deficient number, since it is larger than the sum of its proper divisors (4751096462).

6648798898 is a wasteful number, since it uses less digits than its factorization.

6648798898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81441.

The product of its digits is 334430208, while the sum is 73.

The square root of 6648798898 is about 81540.1673900661. The cubic root of 6648798898 is about 1880.3891319518.

The spelling of 6648798898 in words is "six billion, six hundred forty-eight million, seven hundred ninety-eight thousand, eight hundred ninety-eight".