4121998816 has 24 divisors (see below), whose sum is σ = 8739431064. Its totient is φ = 1902460800.

The previous prime is 4121998807. The next prime is 4121998831. The reversal of 4121998816 is 6188991214.

It is a self number, because there is not a number n which added to its sum of digits gives 4121998816.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4953910 + ... + 4954741.

It is an arithmetic number, because the mean of its divisors is an integer number (364142961).

Almost surely, 2^4121998816 is an apocalyptic number.

It is an amenable number.

4121998816 is an abundant number, since it is smaller than the sum of its proper divisors (4617432248).

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

4121998816 is a wasteful number, since it uses less digits than its factorization.

4121998816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9908674 (or 9908666 counting only the distinct ones).

The product of its digits is 248832, while the sum is 49.

The square root of 4121998816 is about 64202.7944563163. The cubic root of 4121998816 is about 1603.3781251495.

The spelling of 4121998816 in words is "four billion, one hundred twenty-one million, nine hundred ninety-eight thousand, eight hundred sixteen".