273739542691 has 2 divisors, whose sum is σ = 273739542692. Its totient is φ = 273739542690.

The previous prime is 273739542673. The next prime is 273739542763. The reversal of 273739542691 is 196245937372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 273739542691 - 2¹⁷ = 273739411619 is a prime.

It is not a weakly prime, because it can be changed into another prime (273739522691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136869771345 + 136869771346.

It is an arithmetic number, because the mean of its divisors is an integer number (136869771346).

Almost surely, 2^273739542691 is an apocalyptic number.

273739542691 is a deficient number, since it is larger than the sum of its proper divisors (1).

273739542691 is an equidigital number, since it uses as much as digits as its factorization.

273739542691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 58.

The spelling of 273739542691 in words is "two hundred seventy-three billion, seven hundred thirty-nine million, five hundred forty-two thousand, six hundred ninety-one".