1294709863273 has 2 divisors, whose sum is σ = 1294709863274. Its totient is φ = 1294709863272.

The previous prime is 1294709863267. The next prime is 1294709863339. The reversal of 1294709863273 is 3723689074921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125865300624 + 168844562649 = 1061068^2 + 410907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294709863273 - 2²⁵ = 1294676308841 is a prime.

It is a super-3 number, since 3×1294709863273³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1294709863243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647354931636 + 647354931637.

It is an arithmetic number, because the mean of its divisors is an integer number (647354931637).

Almost surely, 2^{1294709863273} is an apocalyptic number.

It is an amenable number.

1294709863273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294709863273 is an equidigital number, since it uses as much as digits as its factorization.

1294709863273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 1294709863273 in words is "one trillion, two hundred ninety-four billion, seven hundred nine million, eight hundred sixty-three thousand, two hundred seventy-three".