6776381720 has 32 divisors (see below), whose sum is σ = 15249215520. Its totient is φ = 2710133760.

The previous prime is 6776381681. The next prime is 6776381741. The reversal of 6776381720 is 271836776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459989 + ... + 474491.

It is an arithmetic number, because the mean of its divisors is an integer number (476537985).

Almost surely, 2^6776381720 is an apocalyptic number.

It is an amenable number.

6776381720 is an abundant number, since it is smaller than the sum of its proper divisors (8472833800).

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

6776381720 is a wasteful number, since it uses less digits than its factorization.

6776381720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26195 (or 26191 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 6776381720 is about 82318.7810891294. The cubic root of 6776381720 is about 1892.3405136935.

The spelling of 6776381720 in words is "six billion, seven hundred seventy-six million, three hundred eighty-one thousand, seven hundred twenty".