6864777207 has 12 divisors (see below), whose sum is σ = 9919981344. Its totient is φ = 4574583360.

The previous prime is 6864777193. The next prime is 6864777209. The reversal of 6864777207 is 7027774686.

It is a de Polignac number, because none of the positive numbers 2^k-6864777207 is a prime.

It is a super-2 number, since 2×6864777207² = 94250332203493441698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864777209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138594 + ... + 181487.

It is an arithmetic number, because the mean of its divisors is an integer number (826665112).

Almost surely, 2^6864777207 is an apocalyptic number.

6864777207 is a deficient number, since it is larger than the sum of its proper divisors (3055204137).

6864777207 is a wasteful number, since it uses less digits than its factorization.

6864777207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322470 (or 322467 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The square root of 6864777207 is about 82853.9510645087. The cubic root of 6864777207 is about 1900.5332950829.

The spelling of 6864777207 in words is "six billion, eight hundred sixty-four million, seven hundred seventy-seven thousand, two hundred seven".