5387185920 has 144 divisors (see below), whose sum is σ = 17462954880. Its totient is φ = 1415073792.

The previous prime is 5387185907. The next prime is 5387185943. The reversal of 5387185920 is 295817835.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5387185920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246811 + ... + 267749.

It is an arithmetic number, because the mean of its divisors is an integer number (121270520).

Almost surely, 2^5387185920 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 5387185920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8731477440).

5387185920 is an abundant number, since it is smaller than the sum of its proper divisors (12075768960).

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

5387185920 is a wasteful number, since it uses less digits than its factorization.

5387185920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030 (or 21016 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 5387185920 is about 73397.4517268822. The cubic root of 5387185920 is about 1753.0218179746.

The spelling of 5387185920 in words is "five billion, three hundred eighty-seven million, one hundred eighty-five thousand, nine hundred twenty".