5813491320 has 576 divisors, whose sum is σ = 23998796640. Its totient is φ = 1209600000.

The previous prime is 5813491301. The next prime is 5813491361. The reversal of 5813491320 is 231943185.

5813491320 is a `hidden beast` number, since 581 + 3 + 49 + 1 + 32 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 23161195 + ... + 23161445.

Almost surely, 2^5813491320 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 5813491320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11999398320).

5813491320 is an abundant number, since it is smaller than the sum of its proper divisors (18185305320).

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

5813491320 is a wasteful number, since it uses less digits than its factorization.

5813491320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 5813491320 is about 76246.2544653834. The cubic root of 5813491320 is about 1798.0937968549.

The spelling of 5813491320 in words is "five billion, eight hundred thirteen million, four hundred ninety-one thousand, three hundred twenty".