32642217869 has 2 divisors, whose sum is σ = 32642217870. Its totient is φ = 32642217868.

The previous prime is 32642217847. The next prime is 32642217893. The reversal of 32642217869 is 96871224623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17405524900 + 15236692969 = 131930^2 + 123437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32642217869 is a prime.

It is a super-2 number, since 2×32642217869² (a number of 22 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 (32642217809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16321108934 + 16321108935.

It is an arithmetic number, because the mean of its divisors is an integer number (16321108935).

Almost surely, 2^32642217869 is an apocalyptic number.

It is an amenable number.

32642217869 is a deficient number, since it is larger than the sum of its proper divisors (1).

32642217869 is an equidigital number, since it uses as much as digits as its factorization.

32642217869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The spelling of 32642217869 in words is "thirty-two billion, six hundred forty-two million, two hundred seventeen thousand, eight hundred sixty-nine".