32981779409 has 4 divisors (see below), whose sum is σ = 32982209904. Its totient is φ = 32981348916.

The previous prime is 32981779387. The next prime is 32981779417. The reversal of 32981779409 is 90497718923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32981779409 - 2¹⁶ = 32981713873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32981778409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65687 + ... + 265100.

It is an arithmetic number, because the mean of its divisors is an integer number (8245552476).

Almost surely, 2^32981779409 is an apocalyptic number.

It is an amenable number.

32981779409 is a deficient number, since it is larger than the sum of its proper divisors (430495).

32981779409 is an equidigital number, since it uses as much as digits as its factorization.

32981779409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430494.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 32981779409 in words is "thirty-two billion, nine hundred eighty-one million, seven hundred seventy-nine thousand, four hundred nine".