5386521384 has 80 divisors (see below), whose sum is σ = 15269173920. Its totient is φ = 1773856800.

The previous prime is 5386521353. The next prime is 5386521419. The reversal of 5386521384 is 4831256835.

5386521384 is a `hidden beast` number, since 538 + 65 + 21 + 38 + 4 = 666.

It is a super-2 number, since 2×5386521384² = 58029225240578550912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3709 + ... + 103859.

It is an arithmetic number, because the mean of its divisors is an integer number (190864674).

Almost surely, 2^5386521384 is an apocalyptic number.

5386521384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5386521384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7634586960).

5386521384 is an abundant number, since it is smaller than the sum of its proper divisors (9882652536).

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

5386521384 is a wasteful number, since it uses less digits than its factorization.

5386521384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100252 (or 100239 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 5386521384 is about 73392.9246181129. The cubic root of 5386521384 is about 1752.9497337097.

The spelling of 5386521384 in words is "five billion, three hundred eighty-six million, five hundred twenty-one thousand, three hundred eighty-four".