6868662551 has 8 divisors (see below), whose sum is σ = 6962889360. Its totient is φ = 6775075008.

The previous prime is 6868662547. The next prime is 6868662587. The reversal of 6868662551 is 1552668686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6868662551 - 2² = 6868662547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6868662493 and 6868662502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868668551) 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 7 ways as a sum of consecutive naturals, for example, 138161 + ... + 181178.

It is an arithmetic number, because the mean of its divisors is an integer number (870361170).

Almost surely, 2^6868662551 is an apocalyptic number.

6868662551 is a deficient number, since it is larger than the sum of its proper divisors (94226809).

6868662551 is a wasteful number, since it uses less digits than its factorization.

6868662551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319633.

The product of its digits is 4147200, while the sum is 53.

The square root of 6868662551 is about 82877.3946924009. The cubic root of 6868662551 is about 1900.8917836755.

The spelling of 6868662551 in words is "six billion, eight hundred sixty-eight million, six hundred sixty-two thousand, five hundred fifty-one".