1368278568 has 96 divisors (see below), whose sum is σ = 3936965760. Its totient is φ = 444942720.

The previous prime is 1368278563. The next prime is 1368278591. The reversal of 1368278568 is 8658728631.

1368278568 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 2 + 78 + 568 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1368278563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71121 + ... + 88287.

It is an arithmetic number, because the mean of its divisors is an integer number (41010060).

Almost surely, 2^1368278568 is an apocalyptic number.

1368278568 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 1368278568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968482880).

1368278568 is an abundant number, since it is smaller than the sum of its proper divisors (2568687192).

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

1368278568 is a wasteful number, since it uses less digits than its factorization.

1368278568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17229 (or 17213 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 1368278568 is about 36990.2496341941. The cubic root of 1368278568 is about 1110.1751659281.

It can be divided in two parts, 1368 and 278568, that added together give a 7-th power (279936 = 6⁷).

The spelling of 1368278568 in words is "one billion, three hundred sixty-eight million, two hundred seventy-eight thousand, five hundred sixty-eight".