1265282568 has 192 divisors, whose sum is σ = 3903007680. Its totient is φ = 366912000.

The previous prime is 1265282567. The next prime is 1265282593. The reversal of 1265282568 is 8652825621.

It is a happy number.

1265282568 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 2 + 82 + 568 = 666.

It is not an unprimeable number, because it can be changed into a prime (1265282563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1804618 + ... + 1805318.

It is an arithmetic number, because the mean of its divisors is an integer number (20328165).

Almost surely, 2^1265282568 is an apocalyptic number.

1265282568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1265282568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951503840).

1265282568 is an abundant number, since it is smaller than the sum of its proper divisors (2637725112).

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

1265282568 is a wasteful number, since it uses less digits than its factorization.

1265282568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 813 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 1265282568 is about 35570.8106176961. The cubic root of 1265282568 is about 1081.5896138880.

The spelling of 1265282568 in words is "one billion, two hundred sixty-five million, two hundred eighty-two thousand, five hundred sixty-eight".