3809666672 has 80 divisors (see below), whose sum is σ = 8660439744. Its totient is φ = 1589760000.

The previous prime is 3809666603. The next prime is 3809666711. The reversal of 3809666672 is 2766669083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687272 + ... + 692792.

Almost surely, 2^3809666672 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 3809666672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4330219872).

3809666672 is an abundant number, since it is smaller than the sum of its proper divisors (4850773072).

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

3809666672 is a wasteful number, since it uses less digits than its factorization.

3809666672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 3809666672 is about 61722.4972923164. The cubic root of 3809666672 is about 1561.8128541396.

The spelling of 3809666672 in words is "three billion, eight hundred nine million, six hundred sixty-six thousand, six hundred seventy-two".