5618867808 has 24 divisors (see below), whose sum is σ = 14749528248. Its totient is φ = 1872955904.

The previous prime is 5618867791. The next prime is 5618867857. The reversal of 5618867808 is 8087688165.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29264841 + ... + 29265032.

It is an arithmetic number, because the mean of its divisors is an integer number (614563677).

Almost surely, 2^5618867808 is an apocalyptic number.

It is an amenable number.

5618867808 is an abundant number, since it is smaller than the sum of its proper divisors (9130660440).

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

5618867808 is a wasteful number, since it uses less digits than its factorization.

5618867808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58529886 (or 58529878 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The square root of 5618867808 is about 74959.1075720622. The cubic root of 5618867808 is about 1777.8001490287.

The spelling of 5618867808 in words is "five billion, six hundred eighteen million, eight hundred sixty-seven thousand, eight hundred eight".