6775621704 has 128 divisors (see below), whose sum is σ = 19795968000. Its totient is φ = 2143132992.

The previous prime is 6775621691. The next prime is 6775621729. The reversal of 6775621704 is 4071265776.

6775621704 is a `hidden beast` number, since 6 + 77 + 562 + 17 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6775621704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 625567 + ... + 636305.

It is an arithmetic number, because the mean of its divisors is an integer number (154656000).

Almost surely, 2^6775621704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6775621704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9897984000).

6775621704 is an abundant number, since it is smaller than the sum of its proper divisors (13020346296).

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

6775621704 is a wasteful number, since it uses less digits than its factorization.

6775621704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904 (or 10894 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 6775621704 is about 82314.1646619827. The cubic root of 6775621704 is about 1892.2697648830.

The spelling of 6775621704 in words is "six billion, seven hundred seventy-five million, six hundred twenty-one thousand, seven hundred four".