272813198381 has 2 divisors, whose sum is σ = 272813198382. Its totient is φ = 272813198380.

The previous prime is 272813198347. The next prime is 272813198389. The reversal of 272813198381 is 183891318272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254586848356 + 18226350025 = 504566^2 + 135005^2 .

It is a cyclic number.

It is not a de Polignac number, because 272813198381 - 2²² = 272809004077 is a prime.

It is a super-2 number, since 2×272813198381² (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 (272813198389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136406599190 + 136406599191.

It is an arithmetic number, because the mean of its divisors is an integer number (136406599191).

Almost surely, 2^272813198381 is an apocalyptic number.

It is an amenable number.

272813198381 is a deficient number, since it is larger than the sum of its proper divisors (1).

272813198381 is an equidigital number, since it uses as much as digits as its factorization.

272813198381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 53.

The spelling of 272813198381 in words is "two hundred seventy-two billion, eight hundred thirteen million, one hundred ninety-eight thousand, three hundred eighty-one".