98727272261 has 2 divisors, whose sum is σ = 98727272262. Its totient is φ = 98727272260.

The previous prime is 98727272233. The next prime is 98727272263. The reversal of 98727272261 is 16227272789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75408455236 + 23318817025 = 274606^2 + 152705^2 .

It is a cyclic number.

It is not a de Polignac number, because 98727272261 - 2¹⁸ = 98727010117 is a prime.

Together with 98727272263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98727272263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49363636130 + 49363636131.

It is an arithmetic number, because the mean of its divisors is an integer number (49363636131).

Almost surely, 2^98727272261 is an apocalyptic number.

It is an amenable number.

98727272261 is a deficient number, since it is larger than the sum of its proper divisors (1).

98727272261 is an equidigital number, since it uses as much as digits as its factorization.

98727272261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 53.

The spelling of 98727272261 in words is "ninety-eight billion, seven hundred twenty-seven million, two hundred seventy-two thousand, two hundred sixty-one".