1298856229493 has 2 divisors, whose sum is σ = 1298856229494. Its totient is φ = 1298856229492.

The previous prime is 1298856229459. The next prime is 1298856229499. The reversal of 1298856229493 is 3949226588921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036653858244 + 262202371249 = 1018162^2 + 512057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298856229493 - 2²⁸ = 1298587794037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1298856229499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649428114746 + 649428114747.

It is an arithmetic number, because the mean of its divisors is an integer number (649428114747).

Almost surely, 2^{1298856229493} is an apocalyptic number.

It is an amenable number.

1298856229493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298856229493 is an equidigital number, since it uses as much as digits as its factorization.

1298856229493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134369280, while the sum is 68.

The spelling of 1298856229493 in words is "one trillion, two hundred ninety-eight billion, eight hundred fifty-six million, two hundred twenty-nine thousand, four hundred ninety-three".