272516258681 has 2 divisors, whose sum is σ = 272516258682. Its totient is φ = 272516258680.

The previous prime is 272516258647. The next prime is 272516258723. The reversal of 272516258681 is 186852615272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216117133456 + 56399125225 = 464884^2 + 237485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272516258681 is a prime.

It is a super-2 number, since 2×272516258681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (272516258381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136258129340 + 136258129341.

It is an arithmetic number, because the mean of its divisors is an integer number (136258129341).

Almost surely, 2^272516258681 is an apocalyptic number.

It is an amenable number.

272516258681 is a deficient number, since it is larger than the sum of its proper divisors (1).

272516258681 is an equidigital number, since it uses as much as digits as its factorization.

272516258681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 53.

The spelling of 272516258681 in words is "two hundred seventy-two billion, five hundred sixteen million, two hundred fifty-eight thousand, six hundred eighty-one".