32206849681 has 2 divisors, whose sum is σ = 32206849682. Its totient is φ = 32206849680.

The previous prime is 32206849657. The next prime is 32206849709. The reversal of 32206849681 is 18694860223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30492144400 + 1714705281 = 174620^2 + 41409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32206849681 is a prime.

It is a super-2 number, since 2×32206849681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32206849651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16103424840 + 16103424841.

It is an arithmetic number, because the mean of its divisors is an integer number (16103424841).

Almost surely, 2^32206849681 is an apocalyptic number.

It is an amenable number.

32206849681 is a deficient number, since it is larger than the sum of its proper divisors (1).

32206849681 is an equidigital number, since it uses as much as digits as its factorization.

32206849681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 32206849681 in words is "thirty-two billion, two hundred six million, eight hundred forty-nine thousand, six hundred eighty-one".