1384406255689 has 4 divisors (see below), whose sum is σ = 1384541686656. Its totient is φ = 1384270824724.

The previous prime is 1384406255677. The next prime is 1384406255747. The reversal of 1384406255689 is 9865526044831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1384406255689 - 2¹¹ = 1384406253641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1384406256689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67700149 + ... + 67720594.

It is an arithmetic number, because the mean of its divisors is an integer number (346135421664).

Almost surely, 2^{1384406255689} is an apocalyptic number.

It is an amenable number.

1384406255689 is a deficient number, since it is larger than the sum of its proper divisors (135430967).

1384406255689 is a wasteful number, since it uses less digits than its factorization.

1384406255689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135430966.

The product of its (nonzero) digits is 49766400, while the sum is 61.

The spelling of 1384406255689 in words is "one trillion, three hundred eighty-four billion, four hundred six million, two hundred fifty-five thousand, six hundred eighty-nine".