5813503668 has 108 divisors (see below), whose sum is σ = 18100119492. Its totient is φ = 1563287040.

The previous prime is 5813503639. The next prime is 5813503669. The reversal of 5813503668 is 8663053185.

5813503668 is a `hidden beast` number, since 5 + 81 + 3 + 503 + 6 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4709802384 + 1103701284 = 68628^2 + 33222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5813503669) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66943 + ... + 126918.

It is an arithmetic number, because the mean of its divisors is an integer number (167593699).

Almost surely, 2^5813503668 is an apocalyptic number.

It is an amenable number.

5813503668 is an abundant number, since it is smaller than the sum of its proper divisors (12286615824).

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

5813503668 is a wasteful number, since it uses less digits than its factorization.

5813503668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193902 (or 193890 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 5813503668 is about 76246.3354398098. The cubic root of 5813503668 is about 1798.0950699193.

The spelling of 5813503668 in words is "five billion, eight hundred thirteen million, five hundred three thousand, six hundred sixty-eight".