1275684668365 has 8 divisors (see below), whose sum is σ = 1611391160160. Its totient is φ = 966834695952.

The previous prime is 1275684668299. The next prime is 1275684668399. The reversal of 1275684668365 is 5638664865721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1275684668365 - 2²¹ = 1275682571213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1275684668365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6714129739 + ... + 6714129928.

It is an arithmetic number, because the mean of its divisors is an integer number (201423895020).

Almost surely, 2^{1275684668365} is an apocalyptic number.

It is an amenable number.

1275684668365 is a deficient number, since it is larger than the sum of its proper divisors (335706491795).

1275684668365 is a wasteful number, since it uses less digits than its factorization.

1275684668365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13428259691.

The product of its digits is 348364800, while the sum is 67.

The spelling of 1275684668365 in words is "one trillion, two hundred seventy-five billion, six hundred eighty-four million, six hundred sixty-eight thousand, three hundred sixty-five".