32720382287 has 2 divisors, whose sum is σ = 32720382288. Its totient is φ = 32720382286.

The previous prime is 32720382271. The next prime is 32720382319. The reversal of 32720382287 is 78228302723.

It is a weak prime.

It is an emirp because it is prime and its reverse (78228302723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32720382287 - 2⁴ = 32720382271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32720382217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16360191143 + 16360191144.

It is an arithmetic number, because the mean of its divisors is an integer number (16360191144).

Almost surely, 2^32720382287 is an apocalyptic number.

32720382287 is a deficient number, since it is larger than the sum of its proper divisors (1).

32720382287 is an equidigital number, since it uses as much as digits as its factorization.

32720382287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 32720382287 in words is "thirty-two billion, seven hundred twenty million, three hundred eighty-two thousand, two hundred eighty-seven".