1368093639 has 32 divisors (see below), whose sum is σ = 2032266240. Its totient is φ = 818463360.

The previous prime is 1368093637. The next prime is 1368093677. The reversal of 1368093639 is 9363908631.

It is a happy number.

It is not a de Polignac number, because 1368093639 - 2¹ = 1368093637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368093637) 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 31 ways as a sum of consecutive naturals, for example, 313279 + ... + 317615.

It is an arithmetic number, because the mean of its divisors is an integer number (63508320).

Almost surely, 2^1368093639 is an apocalyptic number.

1368093639 is a deficient number, since it is larger than the sum of its proper divisors (664172601).

1368093639 is an equidigital number, since it uses as much as digits as its factorization.

1368093639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 1368093639 is about 36987.7498504572. The cubic root of 1368093639 is about 1110.1251486197.

The spelling of 1368093639 in words is "one billion, three hundred sixty-eight million, ninety-three thousand, six hundred thirty-nine".