4121886720 has 272 divisors, whose sum is σ = 15099379200. Its totient is φ = 940572672.

The previous prime is 4121886709. The next prime is 4121886737. The reversal of 4121886720 is 276881214.

It is a happy number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6880981 + ... + 6881579.

Almost surely, 2^4121886720 is an apocalyptic number.

4121886720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4121886720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7549689600).

4121886720 is an abundant number, since it is smaller than the sum of its proper divisors (10977492480).

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

4121886720 is an frugal number, since it uses more digits than its factorization.

4121886720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 4121886720 is about 64201.9214665729. The cubic root of 4121886720 is about 1603.3635906229.

The spelling of 4121886720 in words is "four billion, one hundred twenty-one million, eight hundred eighty-six thousand, seven hundred twenty".