1028335746049 has 4 divisors (see below), whose sum is σ = 1028337791236. Its totient is φ = 1028333700864.

The previous prime is 1028335746041. The next prime is 1028335746059. The reversal of 1028335746049 is 9406475338201.

It is a happy number.

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 95938867600 + 932396878449 = 309740^2 + 965607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028335746049 - 2³ = 1028335746041 is a prime.

It is a super-2 number, since 2×1028335746049² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028335745987 and 1028335746005.

It is not an unprimeable number, because it can be changed into a prime (1028335746041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313657 + ... + 1468009.

It is an arithmetic number, because the mean of its divisors is an integer number (257084447809).

It is a 1-persistent number, because it is pandigital, but 2⋅1028335746049 = 2056671492098 is not.

Almost surely, 2^{1028335746049} is an apocalyptic number.

It is an amenable number.

1028335746049 is a deficient number, since it is larger than the sum of its proper divisors (2045187).

1028335746049 is an equidigital number, since it uses as much as digits as its factorization.

1028335746049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045186.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1028335746049 in words is "one trillion, twenty-eight billion, three hundred thirty-five million, seven hundred forty-six thousand, forty-nine".