3812289666 has 16 divisors (see below), whose sum is σ = 7870533888. Its totient is φ = 1229770800.

The previous prime is 3812289653. The next prime is 3812289671. The reversal of 3812289666 is 6669822183.

3812289666 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-3 number, since 3×3812289666³ (a number of 30 digits) contains 333 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, 10247905 + ... + 10248276.

It is an arithmetic number, because the mean of its divisors is an integer number (491908368).

Almost surely, 2^3812289666 is an apocalyptic number.

3812289666 is an abundant number, since it is smaller than the sum of its proper divisors (4058244222).

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

3812289666 is a wasteful number, since it uses less digits than its factorization.

3812289666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20496217.

The product of its digits is 1492992, while the sum is 51.

The square root of 3812289666 is about 61743.7419177037. The cubic root of 3812289666 is about 1562.1712132182.

The spelling of 3812289666 in words is "three billion, eight hundred twelve million, two hundred eighty-nine thousand, six hundred sixty-six".