32918772989 has 2 divisors, whose sum is σ = 32918772990. Its totient is φ = 32918772988.

The previous prime is 32918772949. The next prime is 32918773033. The reversal of 32918772989 is 98927781923.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25269871225 + 7648901764 = 158965^2 + 87458^2 .

It is an emirp because it is prime and its reverse (98927781923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32918772989 - 2¹⁶ = 32918707453 is a prime.

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 (32918772949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16459386494 + 16459386495.

It is an arithmetic number, because the mean of its divisors is an integer number (16459386495).

Almost surely, 2^32918772989 is an apocalyptic number.

It is an amenable number.

32918772989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32918772989 is an equidigital number, since it uses as much as digits as its factorization.

32918772989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 65.

The spelling of 32918772989 in words is "thirty-two billion, nine hundred eighteen million, seven hundred seventy-two thousand, nine hundred eighty-nine".