5385223407840 has 384 divisors, whose sum is σ = 18194396774400. Its totient is φ = 1334153576448.

The previous prime is 5385223407787. The next prime is 5385223407859. The reversal of 5385223407840 is 487043225835.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206214624 + ... + 206240736.

It is an arithmetic number, because the mean of its divisors is an integer number (47381241600).

Almost surely, 2^{5385223407840} 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 5385223407840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9097198387200).

5385223407840 is an abundant number, since it is smaller than the sum of its proper divisors (12809173366560).

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

5385223407840 is a wasteful number, since it uses less digits than its factorization.

5385223407840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26474 (or 26466 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 5385223407840 in words is "five trillion, three hundred eighty-five billion, two hundred twenty-three million, four hundred seven thousand, eight hundred forty".