4243751616 has 224 divisors, whose sum is σ = 12940881408. Its totient is φ = 1215774720.

The previous prime is 4243751581. The next prime is 4243751651. The reversal of 4243751616 is 6161573424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4243751581) and next prime (4243751651).

It is a super-2 number, since 2×4243751616² = 36018855556605222912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4370011 + ... + 4370981.

It is an arithmetic number, because the mean of its divisors is an integer number (57771792).

Almost surely, 2^4243751616 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 4243751616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6470440704).

4243751616 is an abundant number, since it is smaller than the sum of its proper divisors (8697129792).

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

4243751616 is a wasteful number, since it uses less digits than its factorization.

4243751616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1109 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 4243751616 is about 65144.0835072534. The cubic root of 4243751616 is about 1619.0116940974.

The spelling of 4243751616 in words is "four billion, two hundred forty-three million, seven hundred fifty-one thousand, six hundred sixteen".