3872712066 has 16 divisors (see below), whose sum is σ = 7770173664. Its totient is φ = 1286779104.

The previous prime is 3872712059. The next prime is 3872712071. The reversal of 3872712066 is 6602172783.

3872712066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3872712066² = 29995797492283976712, which contains 22 as substring.

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, 1029196 + ... + 1032951.

It is an arithmetic number, because the mean of its divisors is an integer number (485635854).

Almost surely, 2^3872712066 is an apocalyptic number.

3872712066 is an abundant number, since it is smaller than the sum of its proper divisors (3897461598).

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

3872712066 is a wasteful number, since it uses less digits than its factorization.

3872712066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062465.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 3872712066 is about 62231.1181483990. The cubic root of 3872712066 is about 1570.3811353740.

The spelling of 3872712066 in words is "three billion, eight hundred seventy-two million, seven hundred twelve thousand, sixty-six".