5813661308 has 96 divisors (see below), whose sum is σ = 12793920384. Its totient is φ = 2250436608.

The previous prime is 5813661307. The next prime is 5813661311. The reversal of 5813661308 is 8031663185.

It is a super-4 number, since 4×5813661308⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5813661307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3639566 + ... + 3641162.

It is an arithmetic number, because the mean of its divisors is an integer number (133270004).

Almost surely, 2^5813661308 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 5813661308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6396960192).

5813661308 is an abundant number, since it is smaller than the sum of its proper divisors (6980259076).

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

5813661308 is a wasteful number, since it uses less digits than its factorization.

5813661308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 5813661308 is about 76247.3691874021. The cubic root of 5813661308 is about 1798.1113222611. Note that the first 3 decimals are identical.

The spelling of 5813661308 in words is "five billion, eight hundred thirteen million, six hundred sixty-one thousand, three hundred eight".