1028517610201 has 4 divisors (see below), whose sum is σ = 1029428610100. Its totient is φ = 1027606610304.

The previous prime is 1028517610193. The next prime is 1028517610279. The reversal of 1028517610201 is 1020167158201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 440265425625 + 588252184576 = 663525^2 + 766976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028517610201 - 2³ = 1028517610193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028517610501) 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 3 ways as a sum of consecutive naturals, for example, 455498256 + ... + 455500513.

It is an arithmetic number, because the mean of its divisors is an integer number (257357152525).

Almost surely, 2^{1028517610201} is an apocalyptic number.

It is an amenable number.

1028517610201 is a deficient number, since it is larger than the sum of its proper divisors (910999899).

1028517610201 is an equidigital number, since it uses as much as digits as its factorization.

1028517610201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910999898.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 1028517610201 in words is "one trillion, twenty-eight billion, five hundred seventeen million, six hundred ten thousand, two hundred one".