1338693660485 has 16 divisors (see below), whose sum is σ = 1676563837056. Its totient is φ = 1024216552128.

The previous prime is 1338693660457. The next prime is 1338693660503. The reversal of 1338693660485 is 5840663968331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1338693660485 - 2⁴⁰ = 239182032709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317354 + ... + 1666763.

It is an arithmetic number, because the mean of its divisors is an integer number (104785239816).

Almost surely, 2^{1338693660485} is an apocalyptic number.

It is an amenable number.

1338693660485 is a deficient number, since it is larger than the sum of its proper divisors (337870176571).

1338693660485 is a wasteful number, since it uses less digits than its factorization.

1338693660485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990012.

The product of its (nonzero) digits is 67184640, while the sum is 62.

The spelling of 1338693660485 in words is "one trillion, three hundred thirty-eight billion, six hundred ninety-three million, six hundred sixty thousand, four hundred eighty-five".