5381818752 has 128 divisors (see below), whose sum is σ = 14832921600. Its totient is φ = 1727631360.

The previous prime is 5381818747. The next prime is 5381818777. The reversal of 5381818752 is 2578181835.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1241613 + ... + 1245939.

It is an arithmetic number, because the mean of its divisors is an integer number (115882200).

Almost surely, 2^5381818752 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 5381818752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7416460800).

5381818752 is an abundant number, since it is smaller than the sum of its proper divisors (9451102848).

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

5381818752 is a wasteful number, since it uses less digits than its factorization.

5381818752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464 (or 4452 counting only the distinct ones).

The product of its digits is 537600, while the sum is 48.

The square root of 5381818752 is about 73360.8802564419. The cubic root of 5381818752 is about 1752.4394552422.

The spelling of 5381818752 in words is "five billion, three hundred eighty-one million, eight hundred eighteen thousand, seven hundred fifty-two".