1028210196049 has 3 divisors (see below), whose sum is σ = 1028211210057. Its totient is φ = 1028209182042.

The previous prime is 1028210196011. The next prime is 1028210196131. The reversal of 1028210196049 is 9406910128201.

The square root of 1028210196049 is 1014007.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1028210196049 - 2³¹ = 1026062712401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028210195996 and 1028210196014.

It is not an unprimeable number, because it can be changed into a prime (1028210196149) 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 2 ways as a sum of consecutive naturals, for example, 507004 + ... + 1521010.

It is an arithmetic number, because the mean of its divisors is an integer number (342737070019).

Almost surely, 2^{1028210196049} is an apocalyptic number.

1028210196049 is the 1014007-th square number.

1028210196049 is the 507004-th centered octagonal number.

It is an amenable number.

1028210196049 is a deficient number, since it is larger than the sum of its proper divisors (1014008).

1028210196049 is an frugal number, since it uses more digits than its factorization.

1028210196049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028014 (or 1014007 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 1028210196049 in words is "one trillion, twenty-eight billion, two hundred ten million, one hundred ninety-six thousand, forty-nine".