272244608521 has 2 divisors, whose sum is σ = 272244608522. Its totient is φ = 272244608520.

The previous prime is 272244608443. The next prime is 272244608539. The reversal of 272244608521 is 125806442272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191568159225 + 80676449296 = 437685^2 + 284036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272244608521 is a prime.

It is not a weakly prime, because it can be changed into another prime (272244608591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136122304260 + 136122304261.

It is an arithmetic number, because the mean of its divisors is an integer number (136122304261).

Almost surely, 2^272244608521 is an apocalyptic number.

It is an amenable number.

272244608521 is a deficient number, since it is larger than the sum of its proper divisors (1).

272244608521 is an equidigital number, since it uses as much as digits as its factorization.

272244608521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 272244608521 in words is "two hundred seventy-two billion, two hundred forty-four million, six hundred eight thousand, five hundred twenty-one".