1368818357385 has 32 divisors (see below), whose sum is σ = 2319009730560. Its totient is φ = 687072278528.

The previous prime is 1368818357363. The next prime is 1368818357399. The reversal of 1368818357385 is 5837538188631.

It is not a de Polignac number, because 1368818357385 - 2¹⁰ = 1368818356361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11628856 + ... + 11745974.

It is an arithmetic number, because the mean of its divisors is an integer number (72469054080).

Almost surely, 2^{1368818357385} is an apocalyptic number.

1368818357385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1368818357385 is a deficient number, since it is larger than the sum of its proper divisors (950191373175).

1368818357385 is a wasteful number, since it uses less digits than its factorization.

1368818357385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162977.

The product of its digits is 116121600, while the sum is 66.

The spelling of 1368818357385 in words is "one trillion, three hundred sixty-eight billion, eight hundred eighteen million, three hundred fifty-seven thousand, three hundred eighty-five".