1388895580423 has 4 divisors (see below), whose sum is σ = 1495733702008. Its totient is φ = 1282057458840.

The previous prime is 1388895580379. The next prime is 1388895580447. The reversal of 1388895580423 is 3240855988831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1388895580423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388895380423) 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, 53419060773 + ... + 53419060798.

It is an arithmetic number, because the mean of its divisors is an integer number (373933425502).

Almost surely, 2^{1388895580423} is an apocalyptic number.

1388895580423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1388895580423 is a deficient number, since it is larger than the sum of its proper divisors (106838121585).

1388895580423 is a wasteful number, since it uses less digits than its factorization.

1388895580423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106838121584.

The product of its (nonzero) digits is 66355200, while the sum is 64.

The spelling of 1388895580423 in words is "one trillion, three hundred eighty-eight billion, eight hundred ninety-five million, five hundred eighty thousand, four hundred twenty-three".