82331899261 has 6 divisors (see below), whose sum is σ = 85268828762. Its totient is φ = 79492867440.

The previous prime is 82331899259. The next prime is 82331899271. The reversal of 82331899261 is 16299813328.

It can be written as a sum of positive squares in 3 ways, for example, as 32482852900 + 49849046361 = 180230^2 + 223269^2 .

It is not a de Polignac number, because 82331899261 - 2¹ = 82331899259 is a prime.

It is a super-2 number, since 2×82331899261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82331899199 and 82331899208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82331899201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48947970 + ... + 48949651.

Almost surely, 2^82331899261 is an apocalyptic number.

It is an amenable number.

82331899261 is a deficient number, since it is larger than the sum of its proper divisors (2936929501).

82331899261 is an equidigital number, since it uses as much as digits as its factorization.

82331899261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97897679 (or 97897650 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The spelling of 82331899261 in words is "eighty-two billion, three hundred thirty-one million, eight hundred ninety-nine thousand, two hundred sixty-one".