273739542613 has 2 divisors, whose sum is σ = 273739542614. Its totient is φ = 273739542612.

The previous prime is 273739542547. The next prime is 273739542647. The reversal of 273739542613 is 316245937372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197485138449 + 76254404164 = 444393^2 + 276142^2 .

It is a cyclic number.

It is not a de Polignac number, because 273739542613 - 2⁹ = 273739542101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273739542653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136869771306 + 136869771307.

It is an arithmetic number, because the mean of its divisors is an integer number (136869771307).

Almost surely, 2^273739542613 is an apocalyptic number.

It is an amenable number.

273739542613 is a deficient number, since it is larger than the sum of its proper divisors (1).

273739542613 is an equidigital number, since it uses as much as digits as its factorization.

273739542613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 52.

The spelling of 273739542613 in words is "two hundred seventy-three billion, seven hundred thirty-nine million, five hundred forty-two thousand, six hundred thirteen".