16388511389 has 16 divisors (see below), whose sum is σ = 17475178560. Its totient is φ = 15325200000.

The previous prime is 16388511331. The next prime is 16388511397. The reversal of 16388511389 is 98311588361.

It is a cyclic number.

It is not a de Polignac number, because 16388511389 - 2⁸ = 16388511133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16388511389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16388511319) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 622289 + ... + 648089.

It is an arithmetic number, because the mean of its divisors is an integer number (1092198660).

Almost surely, 2^16388511389 is an apocalyptic number.

16388511389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16388511389 is a deficient number, since it is larger than the sum of its proper divisors (1086667171).

16388511389 is a wasteful number, since it uses less digits than its factorization.

16388511389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26252.

The product of its digits is 1244160, while the sum is 53.

The spelling of 16388511389 in words is "sixteen billion, three hundred eighty-eight million, five hundred eleven thousand, three hundred eighty-nine".