272413786781 has 2 divisors, whose sum is σ = 272413786782. Its totient is φ = 272413786780.

The previous prime is 272413786753. The next prime is 272413786807. The reversal of 272413786781 is 187687314272.

272413786781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249570184900 + 22843601881 = 499570^2 + 151141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272413786781 is a prime.

It is a super-2 number, since 2×272413786781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272413786751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136206893390 + 136206893391.

It is an arithmetic number, because the mean of its divisors is an integer number (136206893391).

Almost surely, 2^272413786781 is an apocalyptic number.

It is an amenable number.

272413786781 is a deficient number, since it is larger than the sum of its proper divisors (1).

272413786781 is an equidigital number, since it uses as much as digits as its factorization.

272413786781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 56.

The spelling of 272413786781 in words is "two hundred seventy-two billion, four hundred thirteen million, seven hundred eighty-six thousand, seven hundred eighty-one".