4065863424 has 144 divisors (see below), whose sum is σ = 12458261760. Its totient is φ = 1153105920.

The previous prime is 4065863411. The next prime is 4065863513. The reversal of 4065863424 is 4243685604.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 744544 + ... + 749984.

Almost surely, 2^4065863424 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 4065863424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6229130880).

4065863424 is an abundant number, since it is smaller than the sum of its proper divisors (8392398336).

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

4065863424 is a wasteful number, since it uses less digits than its factorization.

4065863424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5592 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 4065863424 is about 63764.1233296593. The cubic root of 4065863424 is about 1596.0663033617.

The spelling of 4065863424 in words is "four billion, sixty-five million, eight hundred sixty-three thousand, four hundred twenty-four".