32381870393 has 2 divisors, whose sum is σ = 32381870394. Its totient is φ = 32381870392.

The previous prime is 32381870387. The next prime is 32381870401. The reversal of 32381870393 is 39307818323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21270180649 + 11111689744 = 145843^2 + 105412^2 .

It is a cyclic number.

It is not a de Polignac number, because 32381870393 - 2⁴ = 32381870377 is a prime.

It is not a weakly prime, because it can be changed into another prime (32381870333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16190935196 + 16190935197.

It is an arithmetic number, because the mean of its divisors is an integer number (16190935197).

Almost surely, 2^32381870393 is an apocalyptic number.

It is an amenable number.

32381870393 is a deficient number, since it is larger than the sum of its proper divisors (1).

32381870393 is an equidigital number, since it uses as much as digits as its factorization.

32381870393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 32381870393 in words is "thirty-two billion, three hundred eighty-one million, eight hundred seventy thousand, three hundred ninety-three".