273509883137 has 2 divisors, whose sum is σ = 273509883138. Its totient is φ = 273509883136.

The previous prime is 273509883089. The next prime is 273509883191. The reversal of 273509883137 is 731388905372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262831554241 + 10678328896 = 512671^2 + 103336^2 .

It is a cyclic number.

It is not a de Polignac number, because 273509883137 - 2²⁶ = 273442774273 is a prime.

It is not a weakly prime, because it can be changed into another prime (273509883937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136754941568 + 136754941569.

It is an arithmetic number, because the mean of its divisors is an integer number (136754941569).

Almost surely, 2^273509883137 is an apocalyptic number.

It is an amenable number.

273509883137 is a deficient number, since it is larger than the sum of its proper divisors (1).

273509883137 is an equidigital number, since it uses as much as digits as its factorization.

273509883137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 273509883137 in words is "two hundred seventy-three billion, five hundred nine million, eight hundred eighty-three thousand, one hundred thirty-seven".