6776031388 has 12 divisors (see below), whose sum is σ = 13552062832. Its totient is φ = 2904013440.

The previous prime is 6776031359. The next prime is 6776031421. The reversal of 6776031388 is 8831306776.

6776031388 is an admirable number.

It is a super-3 number, since 3×6776031388³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 121000533 + ... + 121000588.

Almost surely, 2^6776031388 is an apocalyptic number.

It is an amenable number.

6776031388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6776031388 is a wasteful number, since it uses less digits than its factorization.

6776031388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242001132 (or 242001130 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 6776031388 is about 82316.6531632573. The cubic root of 6776031388 is about 1892.3079024422.

The spelling of 6776031388 in words is "six billion, seven hundred seventy-six million, thirty-one thousand, three hundred eighty-eight".