5813643240 has 128 divisors (see below), whose sum is σ = 19422864000. Its totient is φ = 1546781184.

The previous prime is 5813643233. The next prime is 5813643263. The reversal of 5813643240 is 423463185.

5813643240 is a `hidden beast` number, since 5 + 8 + 1 + 3 + 643 + 2 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5813643195 and 5813643204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487671 + ... + 499449.

It is an arithmetic number, because the mean of its divisors is an integer number (151741125).

Almost surely, 2^5813643240 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 5813643240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9711432000).

5813643240 is an abundant number, since it is smaller than the sum of its proper divisors (13609220760).

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

5813643240 is a wasteful number, since it uses less digits than its factorization.

5813643240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256 (or 12246 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 5813643240 is about 76247.2507045336. The cubic root of 5813643240 is about 1798.1094595044.

The spelling of 5813643240 in words is "five billion, eight hundred thirteen million, six hundred forty-three thousand, two hundred forty".