1028559396079 has 4 divisors (see below), whose sum is σ = 1089062889984. Its totient is φ = 968055902176.

The previous prime is 1028559396041. The next prime is 1028559396101. The reversal of 1028559396079 is 9706939558201.

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

It is a cyclic number.

It is not a de Polignac number, because 1028559396079 - 2¹³ = 1028559387887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028559396079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028559396679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30251746927 + ... + 30251746960.

It is an arithmetic number, because the mean of its divisors is an integer number (272265722496).

Almost surely, 2^{1028559396079} is an apocalyptic number.

1028559396079 is a deficient number, since it is larger than the sum of its proper divisors (60503493905).

1028559396079 is an equidigital number, since it uses as much as digits as its factorization.

1028559396079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60503493904.

The product of its (nonzero) digits is 36741600, while the sum is 64.

The spelling of 1028559396079 in words is "one trillion, twenty-eight billion, five hundred fifty-nine million, three hundred ninety-six thousand, seventy-nine".