6917889868 has 6 divisors (see below), whose sum is σ = 12106307276. Its totient is φ = 3458944932.

The previous prime is 6917889851. The next prime is 6917889871. The reversal of 6917889868 is 8689887196.

It is a junction number, because it is equal to n+sod(n) for n = 6917889797 and 6917889806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864736230 + ... + 864736237.

Almost surely, 2^6917889868 is an apocalyptic number.

It is an amenable number.

6917889868 is a deficient number, since it is larger than the sum of its proper divisors (5188417408).

6917889868 is a wasteful number, since it uses less digits than its factorization.

6917889868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729472471 (or 1729472469 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 70.

The square root of 6917889868 is about 83173.8532713256. The cubic root of 6917889868 is about 1905.4221725617.

The spelling of 6917889868 in words is "six billion, nine hundred seventeen million, eight hundred eighty-nine thousand, eight hundred sixty-eight".