4221761412 has 144 divisors (see below), whose sum is σ = 11594935296. Its totient is φ = 1183406400.

The previous prime is 4221761399. The next prime is 4221761441. The reversal of 4221761412 is 2141671224.

It is a self number, because there is not a number n which added to its sum of digits gives 4221761412.

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 47 ways as a sum of consecutive naturals, for example, 2916873 + ... + 2918319.

It is an arithmetic number, because the mean of its divisors is an integer number (80520384).

Almost surely, 2^4221761412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221761412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5797467648).

4221761412 is an abundant number, since it is smaller than the sum of its proper divisors (7373173884).

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

4221761412 is a wasteful number, since it uses less digits than its factorization.

4221761412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550 (or 1517 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 4221761412 is about 64975.0830087965. The cubic root of 4221761412 is about 1616.2103936644.

The spelling of 4221761412 in words is "four billion, two hundred twenty-one million, seven hundred sixty-one thousand, four hundred twelve".