1017385280823 has 8 divisors (see below), whose sum is σ = 1356518825200. Its totient is φ = 678254295168.

The previous prime is 1017385280773. The next prime is 1017385280833. The reversal of 1017385280823 is 3280825837101.

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

It is not a de Polignac number, because 1017385280823 - 2⁹ = 1017385280311 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 (1017385280833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672783 + ... + 1577151.

It is an arithmetic number, because the mean of its divisors is an integer number (169564853150).

Almost surely, 2^{1017385280823} is an apocalyptic number.

1017385280823 is a deficient number, since it is larger than the sum of its proper divisors (339133544377).

1017385280823 is an equidigital number, since it uses as much as digits as its factorization.

1017385280823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279361.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 1017385280823 in words is "one trillion, seventeen billion, three hundred eighty-five million, two hundred eighty thousand, eight hundred twenty-three".