4121205885 has 24 divisors (see below), whose sum is σ = 7407996960. Its totient is φ = 2197975824.

The previous prime is 4121205839. The next prime is 4121205899. The reversal of 4121205885 is 5885021214.

It is not a de Polignac number, because 4121205885 - 2⁸ = 4121205629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1694755 + ... + 1697184.

It is an arithmetic number, because the mean of its divisors is an integer number (308666540).

Almost surely, 2^4121205885 is an apocalyptic number.

4121205885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4121205885 is a deficient number, since it is larger than the sum of its proper divisors (3286791075).

4121205885 is an equidigital number, since it uses as much as digits as its factorization.

4121205885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391959 (or 3391947 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 4121205885 is about 64196.6189530259. The cubic root of 4121205885 is about 1603.2753069288.

The spelling of 4121205885 in words is "four billion, one hundred twenty-one million, two hundred five thousand, eight hundred eighty-five".