32642217893 has 2 divisors, whose sum is σ = 32642217894. Its totient is φ = 32642217892.

The previous prime is 32642217869. The next prime is 32642217931. The reversal of 32642217893 is 39871224623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32503402369 + 138815524 = 180287^2 + 11782^2 .

It is an emirp because it is prime and its reverse (39871224623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32642217893 - 2¹⁴ = 32642201509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32642217823) 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, 16321108946 + 16321108947.

It is an arithmetic number, because the mean of its divisors is an integer number (16321108947).

Almost surely, 2^32642217893 is an apocalyptic number.

It is an amenable number.

32642217893 is a deficient number, since it is larger than the sum of its proper divisors (1).

32642217893 is an equidigital number, since it uses as much as digits as its factorization.

32642217893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The spelling of 32642217893 in words is "thirty-two billion, six hundred forty-two million, two hundred seventeen thousand, eight hundred ninety-three".