83498726261 has 2 divisors, whose sum is σ = 83498726262. Its totient is φ = 83498726260.

The previous prime is 83498726203. The next prime is 83498726273. The reversal of 83498726261 is 16262789438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72559658161 + 10939068100 = 269369^2 + 104590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83498726261 is a prime.

It is a super-2 number, since 2×83498726261² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83498726197 and 83498726206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83498726761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41749363130 + 41749363131.

It is an arithmetic number, because the mean of its divisors is an integer number (41749363131).

Almost surely, 2^83498726261 is an apocalyptic number.

It is an amenable number.

83498726261 is a deficient number, since it is larger than the sum of its proper divisors (1).

83498726261 is an equidigital number, since it uses as much as digits as its factorization.

83498726261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 56.

The spelling of 83498726261 in words is "eighty-three billion, four hundred ninety-eight million, seven hundred twenty-six thousand, two hundred sixty-one".