273965426461 has 2 divisors, whose sum is σ = 273965426462. Its totient is φ = 273965426460.

The previous prime is 273965426453. The next prime is 273965426533. The reversal of 273965426461 is 164624569372.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252223923961 + 21741502500 = 502219^2 + 147450^2 .

It is a cyclic number.

It is not a de Polignac number, because 273965426461 - 2³ = 273965426453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273965429461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136982713230 + 136982713231.

It is an arithmetic number, because the mean of its divisors is an integer number (136982713231).

Almost surely, 2^273965426461 is an apocalyptic number.

It is an amenable number.

273965426461 is a deficient number, since it is larger than the sum of its proper divisors (1).

273965426461 is an equidigital number, since it uses as much as digits as its factorization.

273965426461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 55.

The spelling of 273965426461 in words is "two hundred seventy-three billion, nine hundred sixty-five million, four hundred twenty-six thousand, four hundred sixty-one".