6644773104 has 20 divisors (see below), whose sum is σ = 17165663976. Its totient is φ = 2214924352.

The previous prime is 6644773099. The next prime is 6644773123. The reversal of 6644773104 is 4013774466.

It is a zygodrome in base 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, 69216339 + ... + 69216434.

Almost surely, 2^6644773104 is an apocalyptic number.

It is an amenable number.

6644773104 is an abundant number, since it is smaller than the sum of its proper divisors (10520890872).

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

6644773104 is a wasteful number, since it uses less digits than its factorization.

6644773104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138432784 (or 138432778 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 6644773104 is about 81515.4776959566. The cubic root of 6644773104 is about 1880.0095351863.

The spelling of 6644773104 in words is "six billion, six hundred forty-four million, seven hundred seventy-three thousand, one hundred four".