3809866680 has 96 divisors (see below), whose sum is σ = 12390356160. Its totient is φ = 1015284480.

The previous prime is 3809866667. The next prime is 3809866729. The reversal of 3809866680 is 866689083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768289 + ... + 773231.

It is an arithmetic number, because the mean of its divisors is an integer number (129066210).

Almost surely, 2^3809866680 is an apocalyptic number.

3809866680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3809866680 is an abundant number, since it is smaller than the sum of its proper divisors (8580489480).

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

3809866680 is a wasteful number, since it uses less digits than its factorization.

3809866680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101 (or 7094 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 3809866680 is about 61724.1174906535. The cubic root of 3809866680 is about 1561.8401854545.

It can be divided in two parts, 3809 and 866680, that added together give a square (870489 = 933²).

The spelling of 3809866680 in words is "three billion, eight hundred nine million, eight hundred sixty-six thousand, six hundred eighty".