4251978752 has 88 divisors (see below), whose sum is σ = 9744047520. Its totient is φ = 1816657920.

The previous prime is 4251978737. The next prime is 4251978769. The reversal of 4251978752 is 2578791524.

It is a self number, because there is not a number n which added to its sum of digits gives 4251978752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017024 + ... + 3018432.

Almost surely, 2^4251978752 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 4251978752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4872023760).

4251978752 is an abundant number, since it is smaller than the sum of its proper divisors (5492068768).

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

4251978752 is a wasteful number, since it uses less digits than its factorization.

4251978752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1839 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 50.

The square root of 4251978752 is about 65207.1986210112. The cubic root of 4251978752 is about 1620.0572494121.

The spelling of 4251978752 in words is "four billion, two hundred fifty-one million, nine hundred seventy-eight thousand, seven hundred fifty-two".