1368275643 has 24 divisors (see below), whose sum is σ = 2270112000. Its totient is φ = 777935664.

The previous prime is 1368275621. The next prime is 1368275653. The reversal of 1368275643 is 3465728631.

1368275643 is a `hidden beast` number, since 1 + 3 + 6 + 82 + 7 + 564 + 3 = 666.

It is not a de Polignac number, because 1368275643 - 2⁵ = 1368275611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1368275603) 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, 42033 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (94588000).

Almost surely, 2^1368275643 is an apocalyptic number.

1368275643 is a deficient number, since it is larger than the sum of its proper divisors (901836357).

1368275643 is a wasteful number, since it uses less digits than its factorization.

1368275643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109351 (or 109348 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 1368275643 is about 36990.2100967269. The cubic root of 1368275643 is about 1110.1743748453.

The spelling of 1368275643 in words is "one billion, three hundred sixty-eight million, two hundred seventy-five thousand, six hundred forty-three".