1028100494369 has 8 divisors (see below), whose sum is σ = 1107321664680. Its totient is φ = 948898826496.

The previous prime is 1028100494359. The next prime is 1028100494401. The reversal of 1028100494369 is 9634940018201.

1028100494369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 294658980625 + 733441513744 = 542825^2 + 856412^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028100494369 is a prime.

It is a super-2 number, since 2×1028100494369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028100494329) 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, 4766024 + ... + 4977065.

It is an arithmetic number, because the mean of its divisors is an integer number (138415208085).

Almost surely, 2^{1028100494369} is an apocalyptic number.

It is an amenable number.

1028100494369 is a deficient number, since it is larger than the sum of its proper divisors (79221170311).

1028100494369 is an equidigital number, since it uses as much as digits as its factorization.

1028100494369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751219.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 1028100494369 in words is "one trillion, twenty-eight billion, one hundred million, four hundred ninety-four thousand, three hundred sixty-nine".