5381643608 has 32 divisors (see below), whose sum is σ = 11011584960. Its totient is φ = 2445384480.

The previous prime is 5381643551. The next prime is 5381643623. The reversal of 5381643608 is 8063461835.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312191 + ... + 328977.

It is an arithmetic number, because the mean of its divisors is an integer number (344112030).

Almost surely, 2^5381643608 is an apocalyptic number.

It is an amenable number.

5381643608 is an abundant number, since it is smaller than the sum of its proper divisors (5629941352).

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

5381643608 is a wasteful number, since it uses less digits than its factorization.

5381643608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20447 (or 20443 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 5381643608 is about 73359.6865315004. The cubic root of 5381643608 is about 1752.4204447801.

The spelling of 5381643608 in words is "five billion, three hundred eighty-one million, six hundred forty-three thousand, six hundred eight".