5861999808 has 448 divisors, whose sum is σ = 20688035840. Its totient is φ = 1612431360.

The previous prime is 5861999797. The next prime is 5861999813. The reversal of 5861999808 is 8089991685.

5861999808 is a `hidden beast` number, since 5 + 8 + 619 + 9 + 9 + 8 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30372960 + ... + 30373152.

Almost surely, 2^5861999808 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 5861999808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10344017920).

5861999808 is an abundant number, since it is smaller than the sum of its proper divisors (14826036032).

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

5861999808 is an equidigital number, since it uses as much as digits as its factorization.

5861999808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 63.

The square root of 5861999808 is about 76563.6977163460. The cubic root of 5861999808 is about 1803.0811229249.

The spelling of 5861999808 in words is "five billion, eight hundred sixty-one million, nine hundred ninety-nine thousand, eight hundred eight".