5781382320 has 320 divisors, whose sum is σ = 21872885760. Its totient is φ = 1233792000.

The previous prime is 5781382303. The next prime is 5781382331. The reversal of 5781382320 is 232831875.

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, 2265045 + ... + 2267595.

It is an arithmetic number, because the mean of its divisors is an integer number (68352768).

Almost surely, 2^5781382320 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 5781382320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10936442880).

5781382320 is an abundant number, since it is smaller than the sum of its proper divisors (16091503440).

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

5781382320 is a wasteful number, since it uses less digits than its factorization.

5781382320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664 (or 2658 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 5781382320 is about 76035.4017547090. The cubic root of 5781382320 is about 1794.7772806329. Note that the first 3 decimals are identical.

The spelling of 5781382320 in words is "five billion, seven hundred eighty-one million, three hundred eighty-two thousand, three hundred twenty".