6868683787 has 16 divisors (see below), whose sum is σ = 8287651840. Its totient is φ = 5560990848.

The previous prime is 6868683779. The next prime is 6868683803. The reversal of 6868683787 is 7873868686.

It is not a de Polignac number, because 6868683787 - 2³ = 6868683779 is a prime.

It is a super-2 number, since 2×6868683787² = 94357633931593322738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868683707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31803 + ... + 121444.

It is an arithmetic number, because the mean of its divisors is an integer number (517978240).

Almost surely, 2^6868683787 is an apocalyptic number.

6868683787 is a deficient number, since it is larger than the sum of its proper divisors (1418968053).

6868683787 is a wasteful number, since it uses less digits than its factorization.

6868683787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153610.

The product of its digits is 130056192, while the sum is 67.

The square root of 6868683787 is about 82877.5228092636. The cubic root of 6868683787 is about 1900.8937426836.

The spelling of 6868683787 in words is "six billion, eight hundred sixty-eight million, six hundred eighty-three thousand, seven hundred eighty-seven".