1028294591449 has 8 divisors (see below), whose sum is σ = 1108815734880. Its totient is φ = 950413485600.

The previous prime is 1028294591399. The next prime is 1028294591459. The reversal of 1028294591449 is 9441954928201.

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

It is not a de Polignac number, because 1028294591449 - 2¹¹ = 1028294589401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028294591393 and 1028294591402.

It is not an unprimeable number, because it can be changed into a prime (1028294591459) 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, 660008587 + ... + 660010144.

It is an arithmetic number, because the mean of its divisors is an integer number (138601966860).

Almost surely, 2^{1028294591449} is an apocalyptic number.

1028294591449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1028294591449 is a deficient number, since it is larger than the sum of its proper divisors (80521143431).

1028294591449 is a wasteful number, since it uses less digits than its factorization.

1028294591449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320018791.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 1028294591449 in words is "one trillion, twenty-eight billion, two hundred ninety-four million, five hundred ninety-one thousand, four hundred forty-nine".