32720547907 has 2 divisors, whose sum is σ = 32720547908. Its totient is φ = 32720547906.

The previous prime is 32720547829. The next prime is 32720547913. The reversal of 32720547907 is 70974502723.

It is a strong prime.

It is an emirp because it is prime and its reverse (70974502723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32720547907 - 2¹¹ = 32720545859 is a prime.

It is not a weakly prime, because it can be changed into another prime (32720547967) 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, 16360273953 + 16360273954.

It is an arithmetic number, because the mean of its divisors is an integer number (16360273954).

Almost surely, 2^32720547907 is an apocalyptic number.

32720547907 is a deficient number, since it is larger than the sum of its proper divisors (1).

32720547907 is an equidigital number, since it uses as much as digits as its factorization.

32720547907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 32720547907 in words is "thirty-two billion, seven hundred twenty million, five hundred forty-seven thousand, nine hundred seven".