1028905440170 has 64 divisors (see below), whose sum is σ = 1963739344896. Its totient is φ = 387557610240.

The previous prime is 1028905440149. The next prime is 1028905440179. The reversal of 1028905440170 is 710445098201.

It is a super-2 number, since 2×1028905440170² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1028905440179) 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 31 ways as a sum of consecutive naturals, for example, 2316512 + ... + 2724708.

It is an arithmetic number, because the mean of its divisors is an integer number (30683427264).

Almost surely, 2^{1028905440170} is an apocalyptic number.

1028905440170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028905440170 is a deficient number, since it is larger than the sum of its proper divisors (934833904726).

1028905440170 is a wasteful number, since it uses less digits than its factorization.

1028905440170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408455.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 1028905440170 in words is "one trillion, twenty-eight billion, nine hundred five million, four hundred forty thousand, one hundred seventy".