1028273656583 has 8 divisors (see below), whose sum is σ = 1034642790000. Its totient is φ = 1021905263808.

The previous prime is 1028273656567. The next prime is 1028273656609. The reversal of 1028273656583 is 3856563728201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1028273656583 - 2⁴ = 1028273656567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028273656183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2743043 + ... + 3095291.

It is an arithmetic number, because the mean of its divisors is an integer number (129330348750).

Almost surely, 2^{1028273656583} is an apocalyptic number.

1028273656583 is a deficient number, since it is larger than the sum of its proper divisors (6369133417).

1028273656583 is a wasteful number, since it uses less digits than its factorization.

1028273656583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370321.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 1028273656583 in words is "one trillion, twenty-eight billion, two hundred seventy-three million, six hundred fifty-six thousand, five hundred eighty-three".