5243878951920 has 3200 divisors, whose sum is σ = 24189186650112. Its totient is φ = 1024789708800.

The previous prime is 5243878951907. The next prime is 5243878951921. The reversal of 5243878951920 is 291598783425.

5243878951920 is a `hidden beast` number, since 5 + 2 + 4 + 38 + 7 + 89 + 519 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243878951921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 40029610255 + ... + 40029610385.

Almost surely, 2^{5243878951920} 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 5243878951920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12094593325056).

5243878951920 is an abundant number, since it is smaller than the sum of its proper divisors (18945307698192).

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

5243878951920 is a wasteful number, since it uses less digits than its factorization.

5243878951920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 5243878951920 in words is "five trillion, two hundred forty-three billion, eight hundred seventy-eight million, nine hundred fifty-one thousand, nine hundred twenty".