5618493816 has 256 divisors, whose sum is σ = 16198963200. Its totient is φ = 1611878400.

The previous prime is 5618493809. The next prime is 5618493817. The reversal of 5618493816 is 6183948165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5618493817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52509235 + ... + 52509341.

It is an arithmetic number, because the mean of its divisors is an integer number (63277200).

Almost surely, 2^5618493816 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 5618493816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8099481600).

5618493816 is an abundant number, since it is smaller than the sum of its proper divisors (10580469384).

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

5618493816 is a wasteful number, since it uses less digits than its factorization.

5618493816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 306 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 5618493816 is about 74956.6128903915. The cubic root of 5618493816 is about 1777.7607046775.

The spelling of 5618493816 in words is "five billion, six hundred eighteen million, four hundred ninety-three thousand, eight hundred sixteen".