2104128612 has 36 divisors (see below), whose sum is σ = 5328650236. Its totient is φ = 700073280.

The previous prime is 2104128583. The next prime is 2104128661. The reversal of 2104128612 is 2168214012.

2104128612 is a `hidden beast` number, since 2 + 1 + 0 + 41 + 2 + 8 + 612 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 528356196 + 1575772416 = 22986^2 + 39696^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34543 + ... + 73494.

Almost surely, 2^2104128612 is an apocalyptic number.

It is an amenable number.

2104128612 is an abundant number, since it is smaller than the sum of its proper divisors (3224521624).

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

2104128612 is a wasteful number, since it uses less digits than its factorization.

2104128612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108588 (or 108583 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2104128612 is about 45870.7816807170. The cubic root of 2104128612 is about 1281.4178242764.

It can be divided in two parts, 210412 and 8612, that added together give a square (219024 = 468²).

The spelling of 2104128612 in words is "two billion, one hundred four million, one hundred twenty-eight thousand, six hundred twelve".