6822778898 has 16 divisors (see below), whose sum is σ = 11078525976. Its totient is φ = 3132656640.

The previous prime is 6822778841. The next prime is 6822778901. The reversal of 6822778898 is 8988772286.

It can be written as a sum of positive squares in 4 ways, for example, as 1352253529 + 5470525369 = 36773^2 + 73963^2 .

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, 674813 + ... + 684848.

Almost surely, 2^6822778898 is an apocalyptic number.

6822778898 is a deficient number, since it is larger than the sum of its proper divisors (4255747078).

6822778898 is a wasteful number, since it uses less digits than its factorization.

6822778898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359869.

The product of its digits is 43352064, while the sum is 65.

The square root of 6822778898 is about 82600.1143945939. The cubic root of 6822778898 is about 1896.6495799925.

The spelling of 6822778898 in words is "six billion, eight hundred twenty-two million, seven hundred seventy-eight thousand, eight hundred ninety-eight".