1368567788 has 72 divisors (see below), whose sum is σ = 2854024992. Its totient is φ = 562464000.

The previous prime is 1368567787. The next prime is 1368567793. The reversal of 1368567788 is 8877658631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1368567787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4870208 + ... + 4870488.

It is an arithmetic number, because the mean of its divisors is an integer number (39639236).

Almost surely, 2^1368567788 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 1368567788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427012496).

1368567788 is an abundant number, since it is smaller than the sum of its proper divisors (1485457204).

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

1368567788 is a wasteful number, since it uses less digits than its factorization.

1368567788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 502 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The square root of 1368567788 is about 36994.1588362271. The cubic root of 1368567788 is about 1110.2533815411.

The spelling of 1368567788 in words is "one billion, three hundred sixty-eight million, five hundred sixty-seven thousand, seven hundred eighty-eight".