272081998949 has 2 divisors, whose sum is σ = 272081998950. Its totient is φ = 272081998948.

The previous prime is 272081998931. The next prime is 272081999003. The reversal of 272081998949 is 949899180272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238161568324 + 33920430625 = 488018^2 + 184175^2 .

It is a cyclic number.

It is not a de Polignac number, because 272081998949 - 2⁸ = 272081998693 is a prime.

It is a super-2 number, since 2×272081998949² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272081994949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136040999474 + 136040999475.

It is an arithmetic number, because the mean of its divisors is an integer number (136040999475).

Almost surely, 2^272081998949 is an apocalyptic number.

It is an amenable number.

272081998949 is a deficient number, since it is larger than the sum of its proper divisors (1).

272081998949 is an equidigital number, since it uses as much as digits as its factorization.

272081998949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 272081998949 in words is "two hundred seventy-two billion, eighty-one million, nine hundred ninety-eight thousand, nine hundred forty-nine".