1012846998409 has 9 divisors (see below), whose sum is σ = 1016080776039. Its totient is φ = 1009623489600.

The previous prime is 1012846998379. The next prime is 1012846998463. The reversal of 1012846998409 is 9048996482101.

The square root of 1012846998409 is 1006403.

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

It can be written as a sum of positive squares in only one way, i.e., 411490175625 + 601356822784 = 641475^2 + 775472^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1012846998409 is a prime.

It is a super-2 number, since 2×1012846998409² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012846998479) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 355258834 + ... + 355261684.

Almost surely, 2^{1012846998409} is an apocalyptic number.

1012846998409 is the 1006403-rd square number.

1012846998409 is the 503202-nd centered octagonal number.

It is an amenable number.

1012846998409 is a deficient number, since it is larger than the sum of its proper divisors (3233777630).

1012846998409 is an frugal number, since it uses more digits than its factorization.

1012846998409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408 (or 3204 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 1012846998409 in words is "one trillion, twelve billion, eight hundred forty-six million, nine hundred ninety-eight thousand, four hundred nine".