6786857144 has 16 divisors (see below), whose sum is σ = 12726349800. Its totient is φ = 3393163872.

The previous prime is 6786857117. The next prime is 6786857191. The reversal of 6786857144 is 4417586876.

It is a happy number.

It is a super-2 number, since 2×6786857144² = 92122859786127673472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6786857144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114719 + ... + 163505.

Almost surely, 2^6786857144 is an apocalyptic number.

It is an amenable number.

6786857144 is a deficient number, since it is larger than the sum of its proper divisors (5939492656).

6786857144 is a wasteful number, since it uses less digits than its factorization.

6786857144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66182 (or 66178 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 56.

The square root of 6786857144 is about 82382.3836994293. The cubic root of 6786857144 is about 1893.3151175538.

The spelling of 6786857144 in words is "six billion, seven hundred eighty-six million, eight hundred fifty-seven thousand, one hundred forty-four".