6786621292 has 12 divisors (see below), whose sum is σ = 12956277096. Its totient is φ = 3084827840.

The previous prime is 6786621271. The next prime is 6786621299. The reversal of 6786621292 is 2921266876.

It is a super-3 number, since 3×6786621292³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (6786621299) 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 3 ways as a sum of consecutive naturals, for example, 77120653 + ... + 77120740.

It is an arithmetic number, because the mean of its divisors is an integer number (1079689758).

Almost surely, 2^6786621292 is an apocalyptic number.

It is an amenable number.

6786621292 is a deficient number, since it is larger than the sum of its proper divisors (6169655804).

6786621292 is a wasteful number, since it uses less digits than its factorization.

6786621292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154241408 (or 154241406 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 6786621292 is about 82380.9522401872. The cubic root of 6786621292 is about 1893.2931855893.

The spelling of 6786621292 in words is "six billion, seven hundred eighty-six million, six hundred twenty-one thousand, two hundred ninety-two".