6811199898 has 64 divisors (see below), whose sum is σ = 14735831040. Its totient is φ = 2092384448.

The previous prime is 6811199897. The next prime is 6811199911. The reversal of 6811199898 is 8989911186.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6811199897) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2251615 + ... + 2254637.

It is an arithmetic number, because the mean of its divisors is an integer number (230247360).

Almost surely, 2^6811199898 is an apocalyptic number.

6811199898 is an abundant number, since it is smaller than the sum of its proper divisors (7924631142).

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

6811199898 is a wasteful number, since it uses less digits than its factorization.

6811199898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its digits is 2239488, while the sum is 60.

The square root of 6811199898 is about 82529.9939294800. The cubic root of 6811199898 is about 1895.5760320477.

The spelling of 6811199898 in words is "six billion, eight hundred eleven million, one hundred ninety-nine thousand, eight hundred ninety-eight".