5781266568 has 768 divisors, whose sum is σ = 22693478400. Its totient is φ = 1341204480.

The previous prime is 5781266473. The next prime is 5781266573. The reversal of 5781266568 is 8656621875.

5781266568 is a `hidden beast` number, since 5 + 7 + 8 + 12 + 66 + 568 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45521721 + ... + 45521847.

It is an arithmetic number, because the mean of its divisors is an integer number (29548800).

Almost surely, 2^5781266568 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 5781266568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11346739200).

5781266568 is an abundant number, since it is smaller than the sum of its proper divisors (16912211832).

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

5781266568 is a wasteful number, since it uses less digits than its factorization.

5781266568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 190 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 5781266568 is about 76034.6405791466. The cubic root of 5781266568 is about 1794.7653025030.

The spelling of 5781266568 in words is "five billion, seven hundred eighty-one million, two hundred sixty-six thousand, five hundred sixty-eight".