128347565386 has 16 divisors (see below), whose sum is σ = 197125156800. Its totient is φ = 62641097568.

The previous prime is 128347565363. The next prime is 128347565443. The reversal of 128347565386 is 683565743821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 128347565386.

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, 344571 + ... + 612718.

It is an arithmetic number, because the mean of its divisors is an integer number (12320322300).

Almost surely, 2^128347565386 is an apocalyptic number.

128347565386 is a deficient number, since it is larger than the sum of its proper divisors (68777591414).

128347565386 is a wasteful number, since it uses less digits than its factorization.

128347565386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958893.

The product of its digits is 29030400, while the sum is 58.

The spelling of 128347565386 in words is "one hundred twenty-eight billion, three hundred forty-seven million, five hundred sixty-five thousand, three hundred eighty-six".