272799227509 has 2 divisors, whose sum is σ = 272799227510. Its totient is φ = 272799227508.

The previous prime is 272799227461. The next prime is 272799227513. The reversal of 272799227509 is 905722997272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166508883025 + 106290344484 = 408055^2 + 326022^2 .

It is a cyclic number.

It is not a de Polignac number, because 272799227509 - 2²⁷ = 272665009781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272799227209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136399613754 + 136399613755.

It is an arithmetic number, because the mean of its divisors is an integer number (136399613755).

Almost surely, 2^272799227509 is an apocalyptic number.

It is an amenable number.

272799227509 is a deficient number, since it is larger than the sum of its proper divisors (1).

272799227509 is an equidigital number, since it uses as much as digits as its factorization.

272799227509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 272799227509 in words is "two hundred seventy-two billion, seven hundred ninety-nine million, two hundred twenty-seven thousand, five hundred nine".