1293298896289 has 3 divisors (see below), whose sum is σ = 1293300033523. Its totient is φ = 1293297759056.

The previous prime is 1293298896269. The next prime is 1293298896299. The reversal of 1293298896289 is 9826988923921.

The square root of 1293298896289 is 1137233.

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 can be written as a sum of positive squares in only one way, i.e., 190362053025 + 1102936843264 = 436305^2 + 1050208^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1293298896289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1293298896229) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 568617 + ... + 1705849.

Almost surely, 2^{1293298896289} is an apocalyptic number.

1293298896289 is the 1137233-rd square number.

1293298896289 is the 568617-th centered octagonal number.

It is an amenable number.

1293298896289 is a deficient number, since it is larger than the sum of its proper divisors (1137234).

1293298896289 is an frugal number, since it uses more digits than its factorization.

1293298896289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274466 (or 1137233 counting only the distinct ones).

The product of its digits is 483729408, while the sum is 76.

The spelling of 1293298896289 in words is "one trillion, two hundred ninety-three billion, two hundred ninety-eight million, eight hundred ninety-six thousand, two hundred eighty-nine".